3537102 - Error:'Approval of purchase requisition failed. Contact admin'/'Errors have occured. Please check workflow log or contact administrator'.

• An error message "Approval of purchase requisition failed. Contact admin." in the Approval details tab of a purchase requisition.
• The purchase requisition remains in approval status even when its already automatically approved.
• In Any document under Approval details tab you might see the error.
• While creating inbound delivery or goods receipt, error is seen 'Purchasing document is not released'.
• While converting PR to PO you may see error as 'Purchase requisition, Item, not approved for ordering'

SAP S/4HANA Cloud Public Edition

Some Error caused this issue.

1. Navigate to the APP 'Flexible Workflow Administration'.
2. Enter the PR (purchase requisition) ID in the Business Object ID field (if the PR ID is not 10 digits, add 00 in prefix).
3. Select the workflow item and open it.
4. Observe the status, which could be 'error'/ 'In process'/ 'blank'/ 'cancelled'
5. Click on the Workflow log button
6. Expand the error 'Error while executing application callback (Method 'result_callback')'.
7. Expand the error 'Approval of purchase requisition failed. Contact admin.'.
8. Here, an understandable error should be visible, for example 'Profit center not found in controlling area ' or 'Account determination for entry YCOA WRX 0001 ___ 3300 not possible'
9. If its lock issue then it should be already resolved in couple of mins, so follow below steps from 11.
10. Else, fix the error then follow steps in KBA 3402028 - Error in Workflows in Status Error App - SAP for Me if the work item status is 'error'
11. Otherwise withdraw the PR and edit and then submit/order it again.
12. If the issue persists, edit the PR for example change the quantity to some value and save. (how to choose right field to make dummy change is given below) 
13. Then, change the quantity back to the original quantity and save.
14. So that workflow is retriggered and will get approved fully.

 Note:Choose any field that is check marked in SSCUI Manage Conditions to Restart Flexible Workflow.  or a field that triggers the restart maintained in Workflow Restart Badi ‘mmpur_po_workflow_restart’  

The above is applicable for any document not just PR.

3263907 - How to check the Purchasing Documents workflow logs? - SAP for Me

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