Microsoft Dynamics CRM 2016 Service Entity field create

Question

I was trying to create a link b/w custom entity(PK) and "service entity", so i was trying to create a field (Foreign Key of custom entity) in service entity.

I am not able to create a field in service entity as it is not allowing me to customize.

I Wanted to know weather i can create a custom field in service entity ? Is there a way to create a custom field ?

I am using Microsoft dynamics CRM online instance.

Thanks in Advance.

Answer 1

No, it is not possible to create custom fields in the service entity.

From EntityMetadata.xlsx in the SDK you can see the following values:

This confirms your observation and shows that it is only possible to create 1:N-relationships from the service entity (not N:1-relationships, N:N-relationships or fields).