diff --git a/src/app/api/core/types/webhook.ts b/src/app/api/core/types/webhook.ts
index 8cd9b58..b6c633f 100644
--- a/src/app/api/core/types/webhook.ts
+++ b/src/app/api/core/types/webhook.ts
@@ -5,5 +5,6 @@ export enum WebhookEvents {
   PRICE_CREATED = 'price.created',
   INVOICE_PAID = 'invoice.paid',
   INVOICE_VOIDED = 'invoice.voided',
+  INVOICE_UPDATED = 'invoice.updated',
   PAYMENT_SUCCEEDED = 'payment.succeeded',
 }
diff --git a/src/app/api/quickbooks/webhook/webhook.service.ts b/src/app/api/quickbooks/webhook/webhook.service.ts
index 2924a53..80bb893 100644
--- a/src/app/api/quickbooks/webhook/webhook.service.ts
+++ b/src/app/api/quickbooks/webhook/webhook.service.ts
@@ -88,6 +88,10 @@ export class WebhookService extends BaseService {
       case WebhookEvents.INVOICE_VOIDED:
         return await this.handleInvoiceVoided(payload, qbTokenInfo)
 
+      case WebhookEvents.INVOICE_UPDATED:
+        await sleep(7000) // invoice.updated event is triggered even when invoice created
+        return await this.handleInvoiceCreated(payload, qbTokenInfo)
+
       case WebhookEvents.PAYMENT_SUCCEEDED:
         return await this.handlePaymentSucceeded(payload, qbTokenInfo)
 
diff --git a/src/db/migrations/20260320071004_add_unique_constraint_deleted_at_client_company_id.sql b/src/db/migrations/20260320071004_add_unique_constraint_deleted_at_client_company_id.sql
new file mode 100644
index 0000000..fe75531
--- /dev/null
+++ b/src/db/migrations/20260320071004_add_unique_constraint_deleted_at_client_company_id.sql
@@ -0,0 +1 @@
+CREATE UNIQUE INDEX "uq_qb_customers_client_company_id_active_idx" ON "qb_customers" USING btree ("client_company_id") WHERE "qb_customers"."deleted_at" is null;
\ No newline at end of file
diff --git a/src/db/migrations/meta/20260320071004_snapshot.json b/src/db/migrations/meta/20260320071004_snapshot.json
new file mode 100644
index 0000000..e641a10
--- /dev/null
+++ b/src/db/migrations/meta/20260320071004_snapshot.json
@@ -0,0 +1,963 @@
+{
+  "id": "106a1a7d-696e-4dfa-b1a4-d866b08fed62",
+  "prevId": "0bf08d18-1252-400a-8467-3522ccb6bfb1",
+  "version": "7",
+  "dialect": "postgresql",
+  "tables": {
+    "public.qb_connection_logs": {
+      "name": "qb_connection_logs",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true,
+          "default": "gen_random_uuid()"
+        },
+        "portal_id": {
+          "name": "portal_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "connection_status": {
+          "name": "connection_status",
+          "type": "connection_statuses",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "'pending'"
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "deleted_at": {
+          "name": "deleted_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.qb_customers": {
+      "name": "qb_customers",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true,
+          "default": "gen_random_uuid()"
+        },
+        "portal_id": {
+          "name": "portal_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "customer_id": {
+          "name": "customer_id",
+          "type": "uuid",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "client_company_id": {
+          "name": "client_company_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "client_id": {
+          "name": "client_id",
+          "type": "uuid",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "company_id": {
+          "name": "company_id",
+          "type": "uuid",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "given_name": {
+          "name": "given_name",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "family_name": {
+          "name": "family_name",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "display_name": {
+          "name": "display_name",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "email": {
+          "name": "email",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "company_name": {
+          "name": "company_name",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "qb_sync_token": {
+          "name": "qb_sync_token",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "qb_customer_id": {
+          "name": "qb_customer_id",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "deleted_at": {
+          "name": "deleted_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        }
+      },
+      "indexes": {
+        "uq_qb_customers_client_company_id_active_idx": {
+          "name": "uq_qb_customers_client_company_id_active_idx",
+          "columns": [
+            {
+              "expression": "client_company_id",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": true,
+          "where": "\"qb_customers\".\"deleted_at\" is null",
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.qb_invoice_sync": {
+      "name": "qb_invoice_sync",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true,
+          "default": "gen_random_uuid()"
+        },
+        "portal_id": {
+          "name": "portal_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "customer_id": {
+          "name": "customer_id",
+          "type": "uuid",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "invoice_number": {
+          "name": "invoice_number",
+          "type": "varchar",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "qb_invoice_id": {
+          "name": "qb_invoice_id",
+          "type": "varchar",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "qb_sync_token": {
+          "name": "qb_sync_token",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "recipient_id": {
+          "name": "recipient_id",
+          "type": "uuid",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "status": {
+          "name": "status",
+          "type": "invoice_statuses",
+          "typeSchema": "public",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "'open'"
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "deleted_at": {
+          "name": "deleted_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {
+        "qb_invoice_sync_customer_id_qb_customers_id_fk": {
+          "name": "qb_invoice_sync_customer_id_qb_customers_id_fk",
+          "tableFrom": "qb_invoice_sync",
+          "tableTo": "qb_customers",
+          "columnsFrom": [
+            "customer_id"
+          ],
+          "columnsTo": [
+            "id"
+          ],
+          "onDelete": "cascade",
+          "onUpdate": "cascade"
+        }
+      },
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.qb_payment_sync": {
+      "name": "qb_payment_sync",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true,
+          "default": "gen_random_uuid()"
+        },
+        "portal_id": {
+          "name": "portal_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "invoice_number": {
+          "name": "invoice_number",
+          "type": "varchar",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "total_amount": {
+          "name": "total_amount",
+          "type": "numeric",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "qb_payment_id": {
+          "name": "qb_payment_id",
+          "type": "varchar",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "qb_sync_token": {
+          "name": "qb_sync_token",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "deleted_at": {
+          "name": "deleted_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.qb_portal_connections": {
+      "name": "qb_portal_connections",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true,
+          "default": "gen_random_uuid()"
+        },
+        "portal_id": {
+          "name": "portal_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "intuit_realm_id": {
+          "name": "intuit_realm_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "access_token": {
+          "name": "access_token",
+          "type": "varchar",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "refresh_token": {
+          "name": "refresh_token",
+          "type": "varchar",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "expires_in": {
+          "name": "expires_in",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "x_refresh_token_expires_in": {
+          "name": "x_refresh_token_expires_in",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "token_type": {
+          "name": "token_type",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "token_set_time": {
+          "name": "token_set_time",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "intiated_by": {
+          "name": "intiated_by",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "income_account_ref": {
+          "name": "income_account_ref",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "asset_account_ref": {
+          "name": "asset_account_ref",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "expense_account_ref": {
+          "name": "expense_account_ref",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "client_fee_ref": {
+          "name": "client_fee_ref",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "service_item_ref": {
+          "name": "service_item_ref",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "is_suspended": {
+          "name": "is_suspended",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "default": false
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "deleted_at": {
+          "name": "deleted_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        }
+      },
+      "indexes": {
+        "uq_qb_portal_connections_portal_id_idx": {
+          "name": "uq_qb_portal_connections_portal_id_idx",
+          "columns": [
+            {
+              "expression": "portal_id",
+              "isExpression": false,
+              "asc": true,
+              "nulls": "last"
+            }
+          ],
+          "isUnique": true,
+          "concurrently": false,
+          "method": "btree",
+          "with": {}
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.qb_product_sync": {
+      "name": "qb_product_sync",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true,
+          "default": "gen_random_uuid()"
+        },
+        "portal_id": {
+          "name": "portal_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "product_id": {
+          "name": "product_id",
+          "type": "uuid",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "price_id": {
+          "name": "price_id",
+          "type": "varchar",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "name": {
+          "name": "name",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "description": {
+          "name": "description",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "copilot_name": {
+          "name": "copilot_name",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "unit_price": {
+          "name": "unit_price",
+          "type": "numeric",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "copilot_unit_price": {
+          "name": "copilot_unit_price",
+          "type": "numeric",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "qb_item_id": {
+          "name": "qb_item_id",
+          "type": "varchar",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "qb_sync_token": {
+          "name": "qb_sync_token",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "is_excluded": {
+          "name": "is_excluded",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": false,
+          "default": false
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "deleted_at": {
+          "name": "deleted_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.qb_settings": {
+      "name": "qb_settings",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true,
+          "default": "gen_random_uuid()"
+        },
+        "portal_id": {
+          "name": "portal_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "absorbed_fee_flag": {
+          "name": "absorbed_fee_flag",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "default": false
+        },
+        "company_name_flag": {
+          "name": "company_name_flag",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "default": false
+        },
+        "create_new_product_flag": {
+          "name": "create_new_product_flag",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "default": false
+        },
+        "initial_invoice_setting_map": {
+          "name": "initial_invoice_setting_map",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "default": false
+        },
+        "initial_product_setting_map": {
+          "name": "initial_product_setting_map",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "default": false
+        },
+        "sync_flag": {
+          "name": "sync_flag",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "default": false
+        },
+        "is_enabled": {
+          "name": "is_enabled",
+          "type": "boolean",
+          "primaryKey": false,
+          "notNull": true,
+          "default": false
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {
+        "qb_settings_portal_id_qb_portal_connections_portal_id_fk": {
+          "name": "qb_settings_portal_id_qb_portal_connections_portal_id_fk",
+          "tableFrom": "qb_settings",
+          "tableTo": "qb_portal_connections",
+          "columnsFrom": [
+            "portal_id"
+          ],
+          "columnsTo": [
+            "portal_id"
+          ],
+          "onDelete": "cascade",
+          "onUpdate": "no action"
+        }
+      },
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    },
+    "public.qb_sync_logs": {
+      "name": "qb_sync_logs",
+      "schema": "",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "uuid",
+          "primaryKey": true,
+          "notNull": true,
+          "default": "gen_random_uuid()"
+        },
+        "portal_id": {
+          "name": "portal_id",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "entity_type": {
+          "name": "entity_type",
+          "type": "entity_types",
+          "typeSchema": "public",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "'invoice'"
+        },
+        "event_type": {
+          "name": "event_type",
+          "type": "event_types",
+          "typeSchema": "public",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "'created'"
+        },
+        "status": {
+          "name": "status",
+          "type": "log_statuses",
+          "typeSchema": "public",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "'success'"
+        },
+        "sync_at": {
+          "name": "sync_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "copilot_id": {
+          "name": "copilot_id",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": true
+        },
+        "quickbooks_id": {
+          "name": "quickbooks_id",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "invoice_number": {
+          "name": "invoice_number",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "amount": {
+          "name": "amount",
+          "type": "numeric",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "remark": {
+          "name": "remark",
+          "type": "varchar(255)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "customer_name": {
+          "name": "customer_name",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "customer_email": {
+          "name": "customer_email",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "tax_amount": {
+          "name": "tax_amount",
+          "type": "numeric",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "fee_amount": {
+          "name": "fee_amount",
+          "type": "numeric",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "product_name": {
+          "name": "product_name",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "product_price": {
+          "name": "product_price",
+          "type": "numeric",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "qb_item_name": {
+          "name": "qb_item_name",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "copilot_price_id": {
+          "name": "copilot_price_id",
+          "type": "varchar(100)",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "error_message": {
+          "name": "error_message",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false
+        },
+        "category": {
+          "name": "category",
+          "type": "failed_record_category_types",
+          "typeSchema": "public",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "'others'"
+        },
+        "attempt": {
+          "name": "attempt",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "default": 0
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": true,
+          "default": "now()"
+        },
+        "deleted_at": {
+          "name": "deleted_at",
+          "type": "timestamp",
+          "primaryKey": false,
+          "notNull": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "policies": {},
+      "checkConstraints": {},
+      "isRLSEnabled": false
+    }
+  },
+  "enums": {
+    "public.connection_statuses": {
+      "name": "connection_statuses",
+      "schema": "public",
+      "values": [
+        "pending",
+        "success",
+        "error"
+      ]
+    },
+    "public.invoice_statuses": {
+      "name": "invoice_statuses",
+      "schema": "public",
+      "values": [
+        "draft",
+        "open",
+        "paid",
+        "void",
+        "deleted"
+      ]
+    },
+    "public.entity_types": {
+      "name": "entity_types",
+      "schema": "public",
+      "values": [
+        "invoice",
+        "product",
+        "payment"
+      ]
+    },
+    "public.event_types": {
+      "name": "event_types",
+      "schema": "public",
+      "values": [
+        "created",
+        "updated",
+        "paid",
+        "voided",
+        "deleted",
+        "succeeded",
+        "mapped",
+        "unmapped"
+      ]
+    },
+    "public.failed_record_category_types": {
+      "name": "failed_record_category_types",
+      "schema": "public",
+      "values": [
+        "auth",
+        "account",
+        "others"
+      ]
+    },
+    "public.log_statuses": {
+      "name": "log_statuses",
+      "schema": "public",
+      "values": [
+        "success",
+        "failed",
+        "info"
+      ]
+    }
+  },
+  "schemas": {},
+  "sequences": {},
+  "roles": {},
+  "policies": {},
+  "views": {},
+  "_meta": {
+    "columns": {},
+    "schemas": {},
+    "tables": {}
+  }
+}
\ No newline at end of file
diff --git a/src/db/migrations/meta/_journal.json b/src/db/migrations/meta/_journal.json
index 651dd22..9a756b6 100644
--- a/src/db/migrations/meta/_journal.json
+++ b/src/db/migrations/meta/_journal.json
@@ -85,6 +85,13 @@
       "when": 1766066307157,
       "tag": "20251218135827_add_attempts_is_suspended_category_columns",
       "breakpoints": true
+    },
+    {
+      "idx": 12,
+      "version": "7",
+      "when": 1773990604565,
+      "tag": "20260320071004_add_unique_constraint_deleted_at_client_company_id",
+      "breakpoints": true
     }
   ]
 }
\ No newline at end of file
diff --git a/src/db/schema/qbCustomers.ts b/src/db/schema/qbCustomers.ts
index 247ae1a..fb7c8bd 100644
--- a/src/db/schema/qbCustomers.ts
+++ b/src/db/schema/qbCustomers.ts
@@ -3,25 +3,34 @@ import { pgTable as table } from 'drizzle-orm/pg-core'
 import { createInsertSchema, createSelectSchema } from 'drizzle-zod'
 import * as t from 'drizzle-orm/pg-core'
 import { z } from 'zod'
-import { relations } from 'drizzle-orm'
+import { isNull, relations } from 'drizzle-orm'
 import { QBInvoiceSync } from '@/db/schema/qbInvoiceSync'
 
-export const QBCustomers = table('qb_customers', {
-  id: t.uuid().defaultRandom().primaryKey(),
-  portalId: t.varchar('portal_id', { length: 255 }).notNull(),
-  customerId: t.uuid('customer_id').notNull(), // can be copilot client Id or company Id
-  clientCompanyId: t.varchar('client_company_id', { length: 255 }), // Copilot client company Id
-  clientId: t.uuid('client_id'), // Copilot client Id
-  companyId: t.uuid('company_id'), // Copilot company Id
-  givenName: t.varchar('given_name', { length: 255 }),
-  familyName: t.varchar('family_name', { length: 255 }),
-  displayName: t.varchar('display_name', { length: 255 }),
-  email: t.varchar('email', { length: 255 }),
-  companyName: t.varchar('company_name', { length: 255 }),
-  qbSyncToken: t.varchar('qb_sync_token', { length: 100 }).notNull(),
-  qbCustomerId: t.varchar('qb_customer_id', { length: 100 }).notNull(),
-  ...timestamps,
-})
+export const QBCustomers = table(
+  'qb_customers',
+  {
+    id: t.uuid().defaultRandom().primaryKey(),
+    portalId: t.varchar('portal_id', { length: 255 }).notNull(),
+    customerId: t.uuid('customer_id').notNull(), // can be copilot client Id or company Id
+    clientCompanyId: t.varchar('client_company_id', { length: 255 }), // Copilot client company Id
+    clientId: t.uuid('client_id'), // Copilot client Id
+    companyId: t.uuid('company_id'), // Copilot company Id
+    givenName: t.varchar('given_name', { length: 255 }),
+    familyName: t.varchar('family_name', { length: 255 }),
+    displayName: t.varchar('display_name', { length: 255 }),
+    email: t.varchar('email', { length: 255 }),
+    companyName: t.varchar('company_name', { length: 255 }),
+    qbSyncToken: t.varchar('qb_sync_token', { length: 100 }).notNull(),
+    qbCustomerId: t.varchar('qb_customer_id', { length: 100 }).notNull(),
+    ...timestamps,
+  },
+  (table) => [
+    t
+      .uniqueIndex('uq_qb_customers_client_company_id_active_idx')
+      .on(table.clientCompanyId)
+      .where(isNull(table.deletedAt)),
+  ],
+)
 
 export const QBCustomerRelations = relations(QBCustomers, ({ many }) => ({
   invoices: many(QBInvoiceSync),