Yes, if this field is surfaced on the common Contact object in Salesforce which SyncApps integrate.
A Salesforce NPSP Affiliation is actually an independent, custom Salesforce object that links Contacts with Organizations. Affiliations can represent current or past connections between your Contacts and Organizations—much like Relationships (the key difference being that Relationships in the NPSP are for Contact-Contact connections, and Affiliations are for Contact-Organization connections).
The NPSP allows you to mark one Affiliation for each Contact as the Contact's Primary Affiliation.
Manage Affiliations by using multiple Salesforce Campaigns.
This is best practice as we sync each Campaign to a Mailchimp Group, with its Campaign members. You can select some or all Campaigns, your preference in Step 1 of the integration. And in Step 2 of the Sync Profile, select your preference if you want these Salesforce Campaigns to be created as Group(s) or Tag(s).
See the Simple Steps below:
1. In Step 1 of the Sync Profile, enabled the option " Want to use a Campaign or Marketing List to sync Campaign/List Members to Mailchimp?"
2. Select the Segmentation Method: Use Mailchimp Groups in Step 2 of the Sync Profile.
3. Hit save then Reset Sync Process and resync.
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