I am using Zoho Books and sometimes my customer pays little higher than the invoiced amount. From the forum I came to know how to entry that ( from contacts with invoice payment option). I noticed that the excess amount is kept as credit.

Now, when I send next invoice, I want to use the previous excess amount and show that I have already received that much and only the residual part is due. 

Can you please tell me a workaround for that?

Regards.

Swapan