payload_too_large

What it means

The request body is over the 100 KB limit, so we did not read it.

Why it happens

• metadata carries a large blob (it is limited to 4 KB).
• A file or base64 data was sent in the body.

What to do

1. Keep metadata to identifiers, like your tenant id, and look everything else up on your side.
2. Send a smaller body; see Limits and pricing.