API errors 500 Server ,504 Gateway Timeout

Hi Phocas,

Thanks for sharing the detailed testing you’ve already done. I can see you’ve tried retries, scoped calls, and smaller incremental requests, so this doesn’t look like a straightforward authentication or request-size issue.

The 500 and 504 responses indicate a server-side error or timeout, but the error alone doesn’t confirm the underlying cause. Please submit this through the MYOB API Support Centre, including the affected endpoint, company file ID, UTC timestamps, request IDs, and response details. This will give the API team the information needed to investigate the specific requests.

Thanks again for documenting the issue and the impact on your customers.

Regards,
Genreve