invalid_days

Admin: days must be a whole number from 1 to 30.

HTTP 422.

Likely cause: The days filter on the deliveries page is 0, above 30, or not a number.

What to do: Pick a number of days from 1 to 30 (7 when left out).

Retry: No. The same request gets the same answer; change something first.

Listed under Requests and validation in Errors. Send the error’s requestId to support and we can find the request.