Amazon error 4000001: Feed rejected - XML or file structure errorThe feed document itself is invalid: broken XML for API submissions, an unescaped special character, a truncated upload, or an empty file. Nothing inside was evaluated.How to fix error 4000001

Validate the document before sending - well-formed XML, correct envelope, matching open and close tags.

Escape &, < and > inside any text field (& becomes &).

Strip control characters and stray null bytes copied in from other systems.

Confirm the upload finished - a truncated file produced by a timed-out transfer looks like a structure error.

Send a single-row test document to isolate whether the problem is the envelope or the data.

All Amazon flat-file error codes