connector_account_invalid

Not an account of that platform. Answered with 400.

What it means

The account named is not one the platform knows in that shape: a Bluesky handle, or a Mastodon account with its instance.

What to do

Send the account as the platform writes it – orderbot.bsky.social on Bluesky, @orderbot@mastodon.social on Mastodon.

The body

{
  "type": "https://tigby.eu/problems/connector_account_invalid",
  "title": "Not an account of that platform",
  "status": 400,
  "detail": "…what was refused, naming this request's own values",
  "code": "connector_account_invalid",
  "doc_url": "https://docs.tigby.eu/errors/connector_account_invalid",
  "agent_hint": "…the next step, for software"
}

Branch on code. The detail names this request's own Handle, id or limit and is not part of the contract.