There can be many reasons for experiencing 502 errors, but if you run into a 502 when making a call to Freshservice PATCH /incidents/{id} and not when making other GET calls the issue is likely in your payload. In Freshservice all fields are permitted for update except:
- description
- description_html
Therefore, be sure to exclude these fields from the request body when you perform PATCH calls to this endpoint. If you attempt to PATCH /incidents/{id} with an updated description value, a 502 will be returned with a provider message containing a very lengthy HTML body that does not explain the cause for the error and culminates in this message:
We're sorry, but something went wrong.
We've been notified about this issue and we'll take a look at it shortly.