The 408 timeout error message appears when you are working on large files that take over 30 seconds to process. Kindly
async mode to allow large files processing.
If enabling the
async mode doesn’t resolve the issue, please add a delay before checking the job status. We have a step-by-step guide here https://pdf.co/process-large-files-integromat-using-custom-api-call-action Please jump to step 5.