Remove the automatic cheque numbers for every transaction in spend money and payroll. Most clients use internet banking & EFT these days, so cheques shouldn't be the default option. If you write a ...
It's just lack of will and or ignorance of the fact that nearly nobody uses cheques now. Fortunately for me I have zero clients who write cheques these days so I just let the payroll generate a cheque number as it's never going to be duplicated.
It is so stupid that it hasn't been addressed though for what should be a very simple fix!