Custom fields limitation?

Custom fields limitation?

Hi,

We are currently extending our SD+ instance with custom fields where we have probably hit some technology limit of ~90 custom fields. Can anyone please confirm this is an expected behavior?

Also is there please any way to have the number of custom fields extended by 4-5 times (i.e. ~500)? Any licensing issue or simply an app design limitation?

Thanks a lot in advance.

BR,
Michal