Sales Commissions can be assigned by editing Users under Admin Mode > Config > Users and selecting Edit User Commissions on the specific user.
Here you may set the percentage or flat total Commission on a monthly basis when this user is set as a Sales Person for each Service that you sell. This is set per Service on each User and defaults to 0 for all Services.
The Sales Person is automatically set to the User who creates the account within the Employee Portal. If a webform is used to create the Customer account using the API or Towercoverage Integration, the API command or Towercoverage integration dictates the entered Sales Person.
Once a Customer Account is created, the Sales Person can be changed from the Services tab of the Customer Overview by any account with the Sales Person Permission set to Edit level.