Payables document sequences Cache size

Summary:

Hi

I have observed when creating Payables document sequences the Cache size is default 1000.

also when transactions are created the sequences are created as follows,

First number that gets assigned to transaction is 100000 and then 101000, 101001, 101002…..102000 like wise. Most of the sequences are lost

1. Can i know the best practice Cache size for Payables document sequences.
2. If we reduce the cache size to 100 or 10 (to minimizes the sequence ending up soon ) what is the impact ???

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