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Select the Invoice you wish to apply the payment to > Enter in an Apply Amount
using up and down arrow key
Enter in an Apply Amount> Press Enter/ Return on your keyboard.
The Enter / Return key commits the apply payment amount to the selected invoice .
To apply to additional Invoices, repeat step #5 to #7.
Click Save.
> Save 
If you have additional payments to apply for other deposits, click Yes when asked to apply more. Otherwise, click No. 