1. Missing Test File Name Can Cause Unexpected Errors
While performing “Test Connection” in SFTP Gate, the connection may appear correct, but the test still fails with unclear errors.
One common reason is:
- Test File Name field is left empty
This results in failure during the upload test, even though connectivity and authentication are working correctly.
Fix: Always provide a simple test file name, for example:
test.txt2. Extra Spaces in Directory Path Can Lead to 502 Errors
A very small formatting issue can cause misleading errors:
- Leading or trailing spaces in directory path
Example:
Incorrect : " /mahi/bng/ReverseFile/"
Correct : "/mahi/bng/ReverseFile/"This may result in:
502 Internal Server Error- Directory access failures
Fix:
- Clear the field completely
- Re-type the directory manually
- Avoid copy-paste
3. Connection “PASS” Does Not Always Mean Fully Configured
Even when:
- SFTP connection succeeds
- Credentials are valid
The overall test may still fail due to:
- Missing directories
- Incorrect file paths
- Incomplete configuration
Recommendation: Validate:
- Outbound directory (payments)
- Inbound directory (responses)
- Test file upload
4. Use Simple File Mask for Initial Testing
When configuring inbound processing:
If a strict file mask is used too early, it may prevent files from being picked up.
Suggested approach:
Start with: .*
Refine later once file naming is confirmed5. Always Verify Directory Availability with the Bank
If errors persist after correcting configuration, the issue may be on the bank side.
Common causes include:
- Directory does not exist
- Incorrect path (case-sensitive)
- Missing read/write permissions
It is helpful to confirm with the bank:
- Folder exists
- User has appropriate access
- Correct directory path is being used
Conclusion
These issues may look small, but they can take time to identify during onboarding.
While I am still learning in this area, following a structured approach helped me troubleshoot faster and avoid unnecessary escalations.
I hope these observations help others working on SAP MBC SFTP integrations.
References
For more detailed information, you may refer to SAP Help documentation:
