invalid_timestamp
HTTP 400
What it means
The lead's timestamp isn't an ISO 8601 time.
What to do
Send it like 2026-10-23T09:41:00Z, or leave it out to use the time of the request.
invalid_timestampHTTP 400
The lead's timestamp isn't an ISO 8601 time.
Send it like 2026-10-23T09:41:00Z, or leave it out to use the time of the request.