CHW-4103 InvalidPayload
request payload was missing or malformed; see endpoint documentation for the expected JSON shape
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Default message: request payload was missing or malformed; see endpoint documentation for the expected JSON shape
HTTP status:400(client)
Problem. The request body was missing, empty, or not parseable as
JSON. Cause. The client sent Content-Type: application/json but
no body, or a malformed body. Fix. Re-serialise the payload per
the endpoint’s documented shape. HTTP 400.