As long as that's separate, meaning the "personal part" of the cloud customer is "a common standard" this is not much a migration issue, if you explicitly devel

As long as that's separate, meaning the "personal part" of the cloud customer is "a common standard" this is not much a migration issue, if you explicitly develop something with $AVendor APIs, well, that's not a common standard, that's something vendor specific and migrate could mean a total re-write.