This error occurs when Evri returns a 400 error during label generation, usually due to a temporary carrier issue or outage.
Error message
"Request failed with status code 400 — evri"
What this means
Evri rejected the request during label generation. This is usually caused by a temporary carrier issue rather than a problem with the shipment data.
How to fix it
Wait a few minutes.
Try regenerating the label.
If the issue continues
Contact support with the RMA ID. Support can check whether there is an active Evri issue or investigate further.