We are looking to implement the standard Approve Purchase Orders Fiori app. For the PO approval in ERP we are using a custom workflow and task (not the standard WS20000075 and TS20000166).
I have referred to a few SCN threads -
Here it is mentioned that the "You should adjust workflow container in the custom task to match with workflow container in SAP standard task, if you do not use the standard task" and "workflow container elements in the approval task should be same as SAP standard task".
Can someone let me know, if the workflow container elements in the custom approval task are not the same as those in the SAP standard task, does it mean that we cannot use the standard Approve Purchase Orders app?