To create a new Customer Payment: 
| ► | Select the Action Manager | 
| • | Select the Customer desired | 
You can set an option in the Company Preferences, A/R Tab that allows a new Payment to be applied to a newly created Invoice if the Due Date shows that it is already due. 
As you exit the Invoice, a message will appear asking if you would like to create a Payment. If you click on Yes a new Payment will appear and you specify the amount to apply to the new Invoice. 
To work with an existing Customer Payment: 
| ► | Select the Lookup Manager | 
The Customer Payment screen will appear showing the original Payment Amount with the Unapplied Balance. (This could be the entire amount for this Payment.) 
 
Page url: http://www.fieldone.com/startech/help/index.html?_customer_payments_create_payment_.htm