If a member tries to add another membership before the expiration date (but still in the renewal period) it throws an error. If a user tries to add another membership after the expiration date (but still within the lapse period) it does not throw an error and allows the membership to be added.
We are still evaluating this issue for a possible fix in a future Service Pack
Steps to Duplicate
Steps to duplicate:
1. Have an active annual one time payment membership in CRM on any user 2. As that user attempt to purchase another annual one time payment membership (Before the expiration date, but still within the renewal period) through BBIS membership form. 3. Notice the error: "You cannot add this item to your shopping cart. You cannot add a membership or membership renewal to a cart twice, and you cannot add a membership if you already are a member."