Do I get error messages for invalid uploads?

Yes. Any errors that occur during the upload, ingestion, or validation of your files are automatically captured, logged, and shown to you in the platform. Each error includes a clear message and a timestamp, and it appears in the document’s activity/history. The same details are available via APIs and webhooks and can be exported in feedback files. This makes it immediately clear why a file was rejected or delayed and which corrective action is needed.