The ossys_espace_reference table does not contain the usages of entity actions which is fine for OSUSR tables as long as you have a properly encapsulated code but since there are System entities which are not exposed with read only, it's common to have direct usages of the entity actions which are not findable. (ex.: entity action CreateOrUpdateUser of entity User produced by module ServiceCenter).

So my suggestion is for Outsystems to please add these references to the ossys_espace_reference table or on a future platform server version rollout expose the system entities with read only and replace all consumptions by new server actions which encapsulate them.

Thanks in advance