In impact.com, the first account user to join your account will be designated as the Primary Marketplace Contact. This user will be listed as the person partners can contact about any questions regarding your program(s) and is the user that will receive messages from partners.
From the left navigation bar, select [Menu] → Settings.
Below the Program section on the right, select Marketplace Profile.
Scroll to the Contacts section, and from the drop-down box select the contacts for whom you want contact information listed.
Any contacts selected here can be contacted about any questions regarding your program(s) and are the users that will receive messages from partners.