Unable to update Purchase Order Descriptive Flexfields via REST API (Postman) – HTTP 403 Forbidden
Summary:
Business Requirement: We need to automatically update Descriptive Flexfields (DFF) fields, specifically:
- Contract Number
- Negotiation Number
- Requisition Number
within the Purchase Orders screen using REST API calls (via Postman).
Issue Description: During testing in the DEV environment, when invoking the Purchase Orders REST API to update DFF values, the system returns an HTTP 403 – Forbidden error.
This error prevents the update of the required fields via API.
Observed Behavior:
- API call returns: 403 Forbidden
- Message: Access to the resource is prohibited
- The same update works correctly when performed manually through the Oracle Fusion UI
Expected Behavior: The API should allow updating the DFF fields in Purchase Orders, similar to the functionality available through the UI.
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