I don't know how many people actually have their sites set up to allow people to subscribe to two or more plans simultaneously, but I can't imagine that it's a lot.
The deciding factor would seem to be the latest date and the plan ID associated with that date.
So if someone is a member of two plans, Plan A, expiring on July 31, and Plan B, expiring on September 15 of the same year, the September 15 date and Plan ID would be passed. If someone is a member of one plan and later signs up for a second plan, the sync would change to that later plan expiration.
There might be an option in the Plug-in that allows it to be limited to a specific Category of plans, or only for selected Plan IDs so that only a desired group of plans is considered.
Most of my clients have one or two Membership levels, and three or four Sponsorship levels - I put the membership levels under a Membership category, and the sponsorship levels under a Sponsorship category. In my case, I only want to display the sponsors on the Community Builder list page, but not the members. For some clients, only the sponsors who are at a certain level or above get listed on that page - most of the settings that determine what shows are determined in the CB filtering and sorting settings for Lists.
I understand that such a module to sync these fields with a third party may not be needed by everyone, but those of us who need to have a way to pass the Plan ID and expiration date to another extension would definitely benefit from it.
Thank you,
Ernie
