Custom Field in My Inbox Purchase Order Screen.

Dear customer 

this is documented connected the bellow link:

https://help.sap.com/doc/0e602d466b99490187fcbb30d1dc897c/2408.500/en-US/564e116c50a845478b97f0d31a5...

The Display Purchase Order app is the root for the purchase order details shown successful the My Inbox exertion and cannot beryllium displayed independently of the My Inbox app. The Display Purchase Order exertion cannot beryllium extended successful the My Inbox application. To widen the Display Purchase Order app presumption successful the My Inbox application, proceed arsenic follows: 1. You are a cardinal idiosyncratic and a concern relation is assigned to your user, for example: SAP_BR_EXTENSIBILITY_SPEC to enactment with the Custom Tiles and the Custom Catalog Extensions apps 2. Create a tile for the Display Purchase Order application 3. Adapt the UI of the the Display Purchase Order application

Thanks SAP Technical Support