The ACSD-51645 patch fixes the issue where an error occurs when saving a new Cart Price Rule if the extension Magento_OfflineShipping is disabled. This patch is available when the Quality Patches Tool (QPT) 1.1.33 is installed. The patch ID is ACSD-51645. Please note that the issue is scheduled to be fixed in Adobe Commerce 2.4.7.
The patch is created for Adobe Commerce version:
Compatible with Adobe Commerce versions:
The patch might become applicable to other versions with new Quality Patches Tool releases. To check if the patch is compatible with your Adobe Commerce version, update the
magento/quality-patches package to the latest version and check the compatibility on the Quality Patches Tool: Search for patches page. Use the patch ID as a search keyword to locate the patch.
Getting an error when saving a new Cart Price Rule if the extension
Magento_OfflineShipping is disabled.
Steps to reproduce:
The Cart Price Rule is saved successfully.
The following error occurs:
report.ERROR: Warning: Undefined array key "simple_free_shipping" in app/code/Magento/SalesRule/Controller/Adminhtml/Promo/Quote/Save.php on line 67  
To apply individual patches, use the following links depending on your deployment method:
To learn more about Quality Patches Tool, refer to:
For info about other patches available in QPT, refer to Quality Patches Tool: Search for patches in the Quality Patches Tool guide.