POST Attachment/{uuid}.file returning 400 "Invalid data format supplied in request body" since ~7 July — documented format rejected

API & SDK
1

Since approximately 7 July 2026, all POST requests to https://api.servicem8.com/api_1.0/Attachment/{uuid}.file return:

{"errorCode":400,"message":"Invalid data format supplied in request body","documentation":"Please refer to https://developer.servicem8.com/llms.txt for developer documentation."}

We note the error response uses a new errorCode/message schema and references llms.txt, and the “Create a new Attachment” reference page was updated roughly a week before this began — which suggests a recent validation-layer rollout may have affected the .file endpoint.

Could you please confirm:

  1. Has the expected request format for POST Attachment/{uuid}.file changed? If so, what is the correct format now?
  2. If not, can this be escalated as a regression? It currently breaks file uploads following your own documented example.

Happy to provide additional request traces if useful.

Thanks,
Melvic