One charity runs a sacrifice programme across six countries. Each animal is sold in shares, and selling has to stop the moment the shares are gone — you cannot take money for an animal that does not exist. That was a spreadsheet, checked by hand against donations as they arrived. Now the option closes itself at the cap, and the fulfilment list — every donor, every name, every share — comes out of the system instead of being rebuilt each season.

Another had its giving history split across a finance spreadsheet, an old platform's export and a bank statement. Turning that into one claim HMRC will accept is the sort of job that gets postponed until it is nearly out of time, and it is where charities quietly lose money. It is now one export, with the missing addresses flagged before they reach HMRC rather than after.