We have a web site that offers Free Member accounts and Donating Sustainer accounts.
We want to maintain our list of Free Member account email addresses through Constant Contact.
We will be writing to our list of Free Members and asking them to upgrade to a Donating Sustainer account.
In doing so, we need the API to function in such a way that when the user upgrades their account type from Free Member to Sustainer status that their email is removed from the Constant Contact email list, so after they become a Donating Sustainer they do not get further emails from us asking them to upgrade their Free Member account, which they no longer have...
Does the API have this intelligence?
We do have the ability to prevent contacts from receiving Constant Contact mail. To give specifics I would need to understand a bit more on the mechanism that you are using to actually have someone upgraded from “Free Member” to “Donating Member”. With that being said, in the process you are using to upgrade that contact and collect their donation you could certainly build in the functionality to also remove the contact to prevent them from recieving mail from your Constant Contact account. There are two methods which will would work for you, but I will list them both.