Follow the steps below if you are looking to merge/combine two (or more) customer lists:
- Go to Customer > Find and visit the Other Keys tab.
- Navigate down to the Group/Mailing list drop-down field to select one of your group mailing lists.
NOTE: Make sure to select the one with the name you do not want to keep.
- When this list is pulled up, click the Group/Mailing list at the bottom and select the list you want to merge it into.
- When the prompt pops up, click Append to add. This will merge the lists.
Repeat the steps above if you have a second list which you need to merge.