We recommend maintaining a buffer of available numbers for each number sequence of greater than 20% to prevent running out ...

We recommend maintaining a buffer of available numbers for each number sequence of greater than 20% to prevent running out in production during peak workloads. Importance: If a number sequence is exhausted and has no more numbers to assign, a work stoppage may result. For example, if you run out of Sales Order numbers, no new sales orders can be created until the situation is corrected.