Hello sfogel2,
Thank you for reaching out to Constant Contact API Developer Support. My team is here to assist outside software developers with questions about building into Constant Contact's API.
It looks like we've already followed up with you directly via email, but here is the information provided for visibility on the forum:
To retrieve Tag IDs for your account, you'd ant to make a call to GET /contact_tags, which will return the IDs for the tags in the account.
You can either make this call via Zapier (if the connection you are using allows for it), or you can do it manually through the API Reference tester linked below and then copy the desired values over:
GET Details for All Tags
https://v3.developer.constantcontact.com/api_reference/index.html#!/Contact_Tags/getTags
Please have a look and let us know if you have any other questions!
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