If the demographics in your incoming database do not match those in your mailing list, a screen similar to this appears:
In this example, all of the demographics match except the source column. If this happens, do one of the following:
Click
Please Select, and then click an existing demographic.
The incoming demographic called source is matched to the demographic you choose.
If
source does not match closely enough with an existing demographic, click Add as New, and
then follow the instructions to create a new demographic.
Once the demographics are properly matched your upload continues. An upload preview appears so that you can review the list format before starting the upload.