Since launching our SyncApps site, we have had a lot of subscribers referring to a "tag" error on our Highrise CRM Sync which is actually a SyncApps feature.

The Highrise CRM SyncApps currently has the following features:
    Each configured tag will be synced to a dedicated list in Constant Contact
    All tagged contacts will also sync into your configured Main list in Constant Contact

For instance, if you configure your SyncApps to sync Highrise tags A, B, C to Constant Contact Main List M.

The SyncApps will create 4 Constant Contact lists:
    List A  (synced from tag A)
    List B  (synced from tag B)
    List C  (synced from tag C)
    List M  (synced from tag A, B, and C)

Syncing Highrise tags to Constant Contact or Mailchimp

When syncing Highrise Tags to Constant Contact or Mailchimp, be sure that this specific tag is in Highrise and has been placed in Step 1 of your Set Up.

If needing to add a tag then you may have to add that specific Highrise Tag in Step 1 of your Set Up then don't forget to Reset and Resync so that this added Tag will be migrated in the next sync. 
Let us hear from you on this topic at our 24/7 Support