Thanks for the reply Alex.

I reviewed the Relationships Seminar Lessons 14 & 15 as well which was listed as having many to many address to contacts and organizations instructions.

The problem is the way that seminar instructs thing to be built with an OrgID and a MemberID in the AddressT it does not allow a single AddressT entry to be used by an OrgID and a MemberID simultaneously. This method would require entering the same address in the AddressT twice.....and I though that the intent of good database design was to avoid that. So the Relationship Seminar course didn't take me where I thought it would.

Still trying to figure this out.

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Reply from Alex Hedley:

So ContactT, CompanyT etc could have more than one address?