When you allocated the receipt to: Accounts receivable → your client
Did you select an invoice, and if you did, was that for $250 or $180
Assuming you either didn’t select an invoice or only allocated $180 to that invoice then the residual should still be in Accounts receivable → your customer. So when you create a later invoice it will automatically be allocated (or partly allocated) to the new invoice.
However if you allocated all $250 to the $180 invoice (over paying it), then you will need to correct that.
If you use the full automated functions then you do not have to correct it. The additional $70 balance is with the customer and will be assigned to the next invoice automatically so you then pay less additional on the next invoice.
In the receipt if you choose a specific invoice, then the amount in that line item will be made to that specific invoice. If the amount is more than the invoice value then that invoice will be overpaid and the funds will not be available to allocate to other invoices.
In the receipt multiple line items can be created to specifically to allocate funds to other invoices
Or if no specific invoice is selected, Manger will progressively allocate the funds starting at the oldest invoice (the let Manager allocate funds to invoices automatically approach).
Rather than having forum members guess about what you did and offer multiple options, which can be confusing on all sides, please post a screen shot of the Edit screen for the receipt. Then we’ll know exactly what you did and can give an immediate answer.
Also, please look at your Sales Invoices tab and tell us the status of the first invoice you mentioned.
Still not clear what the issue is you want to raise. All screenshots are fine and the invoice shows -60 as balance due because you received 60 more from the customer than invoiced. Next time you invoice this customer the -60 will be used to help clear the new invoice. Just try adding another invoice for the same customer and you will see it will include Receipt - DATE - 60 under Total similar to your receipt screenshot.
My example shows:
Amount received from Customer - $524.00
Entered receipt receipt of $524.00
Applied to invoice of $424.00 (first line)
Remaining $100 recorded on second line and not applied to an invoice as there were no other outstanding invoices for that customer