Hello All,
I am using a master-detail form, PURCHASE_ORDER -- master table, and PO_DETAILS -- detail table, linked by PO_ID = PO_ID_FK.
Now I want to create a new PO along with po_details in a single submission
purchase order on top, po details on the bottom as shown in the below pic...

But when i submit this form it is giving error that PO_ID_FK should not be null, i tried creating a computation before page header and next after page header both resulted in an error with "Create" or "Save" button respectively. One is "SQL Insert" the other is "SQL Update"
I computed PO_ID from its sequence and tried putting it into PO_ID_FK, but no use. After submission form validation says "PO_ID_FK should not be null".
Is there any way we can put the calculated PO_ID into PO_ID_FK before form validation?
Thanks and regards,
Pratap N