Locate origins of a prepayment?

[Kate42]

I’m confused:

When I press on ‘Log Payment’ on an invoice - a box with ‘Apply from credit [ GBP 100.04]’ appears and I have no idea where this comes from - what do I need to look at to see where I have accidentally added a credit of £100.04!
Thanks

[QFMathew]

I think the following guide may help:

Locate the origins of a prepayment

Please let us know if you have any follow up questions on this.

[Kate42]

Great that sorted it - thank you