You can individually edit the next payments for customer's membership. To do this go to the Customer profile >> Customer's membership tab >> select the membership you wish to edit >> select the upcoming payments tab.
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Pick the payment you want to edit and you will be taken to a page to edit that individual payment. Here you can change the bill amount, change the dates (useful if the customer wants to delay payment for a particular month), skip this payment, initiate payment early, and you can also edit the description for this one payment to contain an explanation.
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You will then see the changes on the upcoming payment tab.
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