Connecting Airtable to MailerLite, assigning to MailerLite Group

Hello. I’m struggling with an Airtable to MailerLite scenario. My goals:

  1. Watch Airtable records an add new email addresses to MailerLite
  2. Assign email address to Groups in MailerLite using a variable from Airtable

I’ve successfully set up the first of the items above, using Watch Records and Add Subscriber to a Group. But I’ve not been able to figure out how to assign emails to groups in MailerLite. I’m not sure if my problem is in the data I’m trying to map to from Airtable, or in setting up the scenario.

Some questions:

  • Should I make the two goals above into a single scenario in Make? Or should they be two separate scenarios?
  • What type of data in Airtable can I use to match to a group in MailerLite? Will Lookup fields in Airtable work? If yes, does it make a difference if there are multiple values in a single Lookup field? My goal here is to assign members based on a membership year (for example: 2025 Membership Drive in Airtable to 2025 Members in MailerLite).

I first tried just a single scenario WATCH RECORDS —> CREATE/UPDATE A SUBSCRIBER, but I can’t figure out how to make the “Group IDs” in there work. I see that I can select the group from MailerLite (2025 Members) but can’t figure out how to associate that to data from Airtable.

I then tried creating a second scenario WATCH RECORDS —> ADD SUBSCRIBER TO A GROUP, but that isn’t working and I’m not sure why.

I’ve tried searching for similar answers with no luck. Tried using the AI assistance, with no luck. Any assistance would be most appreciated. I’m a beginner when it comes to Make.