Additional Info needs to be a maximum of 1024 char

The Synup API returns SY10002 in the errors array when this happens.

What the response looks like

{
  "data": null,
  "errors": [
    {
      "message": "Additional Info needs to be a maximum of 1024 char",
      "context": {},
      "code": "SY10002"
    }
  ]
}

Where it comes from

Documented under Locations. The context field carries the offending value when one is relevant, and is empty otherwise.

See the full error code reference for every code the API can return.

Other Locations errors