Changes to List messages (inbox + outbox) on a number

added the required property items/items/classification to the response with the 200 status

removed the required property data from the response with the 200 status

removed the required property error from the response with the 404 status

removed the required property reason from the response with the 503 status

removed the required property success from the response with the 503 status

for the query request parameter page, the exclusiveMinimum was set to 0.00

added the media type application/json for the response with the status 401

added the media type application/json for the response with the status 500

added the optional property details to the response with the 404 status

added the optional property details to the response with the 503 status

added the optional property retryAfterSeconds to the response with the 404 status

added the optional property traceId to the response with the 404 status

added the required property code to the response with the 404 status

added the required property code to the response with the 503 status

added the required property items to the response with the 200 status

added the required property message to the response with the 404 status

added the required property pagination to the response with the 200 status

endpoint added