After upgrading API portal from 4.2.9.x to 4.5.x,we can no longer edit previously functional APIs.
Creating new APIs is still functional.
Attempting to save any edit to any field of existing APIs results in the following error: "The request could not be completed due to data input errors."
Release : 4.x
Component : API PORTAL
The problem could be caused because the client / Browser is still using old cached files from the previous version .
Deleting the browser cache would resolve this problem .
You can also try using the command: update api set ssg_service_type = 'REST' where uuid = 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx';