After the upgrade to 2102 S4HC you fill custom fields in the Purchase requisition Apps , however they don´t get updated in the PR.
Reproducing the Issue
Create Purchase Requisition Advanced
Manage Purchase Requisition Professional
Create Purchase Requisition
Customer Fields are filled. After pressing save these fields are no captured and they remain empty
The root cause is already identified and the correction will be delivered in next HFC03 Hotfix - 4500011581 planned for 2oth-21st of February
KBA , MM-PUR-REQ-GUI , Userinterface - Purchase Requisitions , MM-FIO-PUR-REQ-SSP , Fiori UI for Self Service Procurement , Problem