The selected template is not available for this product.

[commercial-hippie]

Hello

I'm still getting the "The selected template is not available for this product." error on our checkout, even using the latest version which includes the following patch:
#347

If I change "Site Template Selection Mode" to "Choose Available Site Templates" and then manually select all the templates it works and I can select the template.

I will try and debug a bit locally and try to pin point the issue, but if you think something is wrong on our end please let me know.

[superdav42]

Hi @commercial-hippie,

I've identified and fixed the issue! 🎉

The Problem

The error was caused by a type mismatch between template IDs. Here's what was happening:

1. Product limitations store template IDs as string keys (e.g., '123')
2. The validation rule converts the submitted template ID to an integer using absint()
3. The comparison failed because it was comparing strings to integers

Even though PR #347 fixed the null limit merging issue, this type mismatch bug remained.

The Fix

I've created PR #353 which:

• Converts template IDs to integers in get_available_site_templates()
• Converts template IDs to integers in get_pre_selected_site_template()
• Adds a regression test to prevent this from happening again

Testing Request

Could you please test this fix? You can:

1. Option A: Wait for the PR to be merged and deployed to your site
2. Option B: Apply the patch manually by updating these two methods in inc/limitations/class-limit-site-templates.php:
   • Line 224: Change $available[] = $site_id; to $available[] = absint($site_id);
   • Line 252: Change $pre_selected_site_template = $site_id; to $pre_selected_site_template = absint($site_id);

This should resolve the "The selected template is not available for this product" error you're experiencing.

Please let me know if this fixes the issue for you!

PR Link: #353

[superdav42]

Or just try this build https://nightly.link/Ultimate-Multisite/ultimate-multisite/actions/runs/22698069186/ultimate-multisite.zip