3526041 - Purchase Requisition is not created even though Sales Order is approved

The Purchase Requisition is not automatically created when a third-party Sales Order is approved. When entering the required field for creating the PR, 'Purchasing Group', and saving the document, the Order goes to approval again. After it's approved, the same process repeats in a loop and the PR is never created.

SAP S/4HANA Cloud Public Edition

Purchase Requisition, PR, Sales Order, SO, approval, third-party sales order, CB1, CBAB, approval workflow, loop, Purchasing Group, product master data, material master data , KBA , SD-SLS-SO-TP-2CL , Third-party order processing (Public Cloud) , Problem