MS Dynamics CRM has a few entities where it offers this functionality (for example customer on opportunity, partylist on email, regarding on activities).
It would be particularly handy if we could define these ourselves for use on any custom or system entity.
For example define a lookup on a custom entity which can contain multiple record types (like customer works) or define a party list on a custom entity and have it contain any system or custom record type (in line of how to/from works on email).
Thank you for your feedback. This is a great suggestion! We will consider this in our roadmap.
Sincerely,
Srikumar Nair
PM, Microsoft