Trying to update a mailing, I get a HTTP 400 "Bad Request" with the following response body:
{ "correlationId": "c24f4d39-f014-4be9-95d9-ebd535640fc8", "message": "Flex areas are in an invalid state, preventing save", "status": "error" }
I checked the original message and the update but unfortunately can't find any fundamental differences. What could be going wrong here? Is there a way for me to check if the flex areas are valid?
All processings are done via Java/Spring Boot/Jackson which I assume to be correct (so I expect the issue in the data itself, not in the transport format). Any help would be appreciated,
The payload contains a lot of data (> 100kB JSON), much of which is potentially sensible information. I need to check with my superiors whether I can disclose this data here.