• There is no record in the purchase order or any other document indicating that it was approved by a substitute.
• How and why an approver who actually approved the document is determined other than workflow recipient.
• Why an additional user appearing in flexible workflow administration app and not in approval details tab.

   

SAP S/4HANA Cloud Public Edition

A.Steps to see the task details of any document is given below:

1. Open APP "Flexible workflow administration".
2. Select the respective Work item and then click on 'log details'.

 Example message:

• "User CB000000001 as the substitute for CB00000002 has become the processor of work item 000000XXXX" 
•  Under 'method' column you can see 'forwarded the item' and who forwarded shall appear in next column (name will appear)

or

B. Check the App 'workflow administration'

1. Click on button 'set substitute' 
2. Enter the CB user of the actual recipient of the workflow and click on enter button on your keyboard.
3. All the existing substitutes if any shall be visible
4. The additional approver is the substitute for the approver that is active with current date within its validity.

1.Refer to SAP Note 2490102 - Substitute approver for purchase orders - SAP for Me

2.Also found below Idea in customer influence forum that is related to supplier invoice,

Comments can be added to include PO and other documents 

Improvement Request Details - Customer Influence (sap.com)

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