403 error while uploading file in integration

Question

Hi Team, 
 I&rsquo;m encountering an issue while uploading a file as part of the integration. The upload works fine for PDF files, but when I try with a .rtf.gz file, I receive a 403 Forbidden error. Interestingly, when I upload the same file to the same URL using Postman, it works without any problem. 
 Could someone please look into this integration issue and help me resolve it? Thanks in advance.

Shubham Aware · Answer

Refer this for better understanding https://community.appian.com/discussions/f/integrations/34751/using-multipart-form-data-to-post-document-to-imanage Documentation :- https://docs.appian.com/suite/help/25.4/fnc_connector_http_a_httpformpart.html

vinodn3917 · Answer

This is not an Appian permission issue. The 403 occurs because the .rtf.gz upload from Appian differs from Postman in headers or encoding. PDFs work because they are more forgiving. The fix is to align Content-Type, Content-Encoding, and request body format exactly with the Postman request or update backend security rules.