I have a recurring invoice template setup for a couple customers and also create manual invoices as needed. The recurring template customer number works fine as long as I do not create a manual invoice for a different number. For example, I have ABC-01 invoice set to be created the 1st of each month. Each month, the number increases by one. So, February is ABC-02. Then February 15, I create a manual invoice for customer XZY and call is XYZ-01. On March, instead of having ABC-03, that customer's invoice is created at XYZ-02. How do I stop this, and have it be ABC-03 without manually editing?