diff --git a/.gitmodules b/.gitmodules
index 214ef69b..48f98105 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "folio-export-common"]
 	path = folio-export-common
 	url = https://github.com/folio-org/folio-export-common.git
+	branch = MODEXPW-638
diff --git a/descriptors/ModuleDescriptor-template.json b/descriptors/ModuleDescriptor-template.json
index a36e45af..ca7a69cd 100644
--- a/descriptors/ModuleDescriptor-template.json
+++ b/descriptors/ModuleDescriptor-template.json
@@ -98,6 +98,7 @@
             "orders-storage.purchase-orders.collection.get",
             "orders-storage.pieces.collection.get",
             "orders-storage.titles.item.get",
+            "orders-storage.custom-fields.collection.get",
             "transfers.collection.get",
             "users.collection.get",
             "users.item.get",
@@ -207,6 +208,7 @@
             "orders-storage.purchase-orders.collection.get",
             "orders-storage.pieces.collection.get",
             "orders-storage.titles.item.get",
+            "orders-storage.custom-fields.collection.get",
             "transfers.collection.get",
             "users.collection.get",
             "users.item.get",
@@ -409,7 +411,8 @@
         "organizations-storage.organizations.item.get",
         "orders-storage.po-lines.collection.get",
         "orders-storage.purchase-orders.collection.get",
-        "orders-storage.pieces.collection.get"
+        "orders-storage.pieces.collection.get",
+        "orders-storage.custom-fields.collection.get"
       ]
     },
     {
@@ -475,6 +478,7 @@
         "orders-storage.purchase-orders.collection.get",
         "orders-storage.pieces.collection.get",
         "orders-storage.titles.item.get",
+        "orders-storage.custom-fields.collection.get",
         "transfers.collection.get",
         "users.collection.get",
         "users.item.get",
diff --git a/folio-export-common b/folio-export-common
index 28dd89f3..3b27ef17 160000
--- a/folio-export-common
+++ b/folio-export-common
@@ -1 +1 @@
-Subproject commit 28dd89f318e8958d59c7d2362a610e432a3be389
+Subproject commit 3b27ef179305c39b45a3802a2472183766c38d24
diff --git a/src/main/resources/permissions/system-user-permissions.csv b/src/main/resources/permissions/system-user-permissions.csv
index befd3f01..90e1c752 100644
--- a/src/main/resources/permissions/system-user-permissions.csv
+++ b/src/main/resources/permissions/system-user-permissions.csv
@@ -19,6 +19,7 @@ orders-storage.po-lines.collection.get
 orders-storage.purchase-orders.collection.get
 orders-storage.pieces.collection.get
 orders-storage.titles.item.get
+orders-storage.custom-fields.collection.get
 transfers.collection.get
 users.collection.get
 users.item.get