Reconcile a manually registered customer payment

When you have Registered a payment for an invoice, that payment will be debited under outstanding receipts accounts, once it is reconciled outstanding receipt will be credited and relevant bank account will be debited.
Also there will be a tag mentioned as   IN PAYMENT 


01.     Go to the relevant bank account and click "RECONCILE XX ITEMS"
  

02.    Look for the relevant feed and search for the related outstanding receipt. You can paste the invoice number & search for relevant journal item under math existing entries

03.  . Now you can click on the transaction and click VALIDATE. Once you have validated, the invoice will be updated with the paid tag