Need Help Preventing Relate/Unrelate Actions When Status is "Closed"

[alohatech]

Hello,
I Have two entities, A and B. Entity A has a status field, and it can have multiple related B records.

I'd like to implement a restriction where, if the status of entity A is set to "Closed", users should not be able to relate or unrelate any B records to/from A.

Could you please advise on the best way to implement this in EspoCRM