3652109 - Error "change not allowed because of existing supplier confirmations" when posting a goods receipt

• While posting a goods receipt for a PO in the 'Post Goods Receipt for Purchasing Documents' app, a dump occurs with error "Change not allowed because of existing Supplier Confirmations" (MMPUR_CONF047).

SAP S/4Hana Public Cloud Edition

1. Create a purchase order with a custom confirmation control key.
2. Create a supplier confirmation for the purchase order in the 'manage supplier confirmations' app with a deviating quantity.
3. Post the goods receipt for the purchase order using the fiori app 'Post Goods Receipt for Purchasing Documents'.
4. The error is raised - "Change not allowed because of existing Supplier Confirmations" (MMPUR_CONF047).

• The issue arises due to a restriction in the Manage Supplier Confirmation business object.
• When the confirmation control key is customized to be 'Goods Receipt' relevant, the system attempts to update the confirmations in the Purchase Order during the Goods Receipt process.
  
• This update is incompatible with the RAP framework used for the Manage Supplier Confirmations app, leading to a hard coded termination error.
  
  "Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental." 

1. Ensure the confirmation control key in the Purchase Order is configured appropriately to avoid conflicts with Supplier Confirmations. 
2. Use one of the following workarounds to avoid the issue:
   a. Add the confirmations directly in the Purchase Order Advanced app.
   b. Use a confirmation control key that is not Goods Receipt relevant (e.g, 0001).
   c. Post the Goods Receipt using the Post Goods Movement MIGO app.

• Refer to SAP Note 3386598 for further clarification on this restriction and potential solutions.
• Refer to SAP Note 3468610 for additional technical details related to this issue.

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