Sales Order Line Not Inserting via OE_ORDER_PUB.PROCESS_ORDER API — Header Inserts Successfully

Hello,

We are using the OE_ORDER_PUB.PROCESS_ORDER API to insert Sales Order Header and Lines programmatically from Oracle APEX. The Sales Order Header is created successfully, but the Line is not being inserted, and no error message is returned.

We have already ensured the following:

• fnd_global.apps_initialize is called with a valid user_id = 2701, and works correctly for the header.
• MO_GLOBAL.INIT('ONT') and MO_GLOBAL.SET_POLICY_CONTEXT('S', 82) are correctly used.
• Initialization is confirmed to be correct because header creation works as expected.
• inventory_item_id = 84614 and ship_from_org_id = 369 are valid.