Step 1: Go to the invoice.
In the search bar, find the member and click on it to open the member's file.
On the General tab, in the list of unpaid invoices > Click on "Take payment" on the invoice you wish to regularize
Step 2: Cash the invoice.
Indicate the amount to be collected > Choose the payment method > Choose the payment date > Add a note (optional) > Click on "Confirm payment".