I have a problem. I use Zoho invoice

I have a problem. I use Zoho invoice

I have a problem. I use Zoho invoice, which is that when I create an invoice for a customer with specific items, let's say the value of these items is 2100, but my customers are not the type who pay the entire invoice amount at once, as they divide the payments. The problem is that I cannot change the total amount to the amount I received from the customer, let's say for example it is 1900, as the remaining amount is added to the crushed balance on the customer's page. Please

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