People often have the same type of questions. Please find them below. If you open an issue that refers to one of these questions, your issue may be closed.
Please refer to the index on your right.
Let's say you have a budget for "Going out", worth € 100. You go out with some friends and you offer to pay the bill, expecting your friends to pay you back later. The total bill is € 120 with your three friends owing you € 90 in total. So although you spent € 120 (overspending your budget with € 20), your actual costs are a mere € 30. What to do?
It's important that Firefly III won't do anything. You can't correct your budget with income, so your budget will appear to have been overspent with € 20. But you can correct this yourself. How exactly is entirely up to you.
You increase the budget with € 90 to a total of € 190. This means you still have € 70 to spend (€ 190 - € 120) but your budget is changed.
You edit the expense so it lists € 30 instead of € 120. This means you don't have to change the budget, but also means you ignore the deposits from your friends.
It's up to you what you do. Personally, I do nr. 2. It means that Firefly III shows me what I actually spent, and my own income isn't skewed by what people pay me back.