PO Number Range Series

Question

Hi,
Our company needs to register our PO number range for revenue regulations. However, our current PO document types refer to our purchasing organizations. Thus, our series is per purchasing organization and not per company. We now want to change our PO number range by creating a new PO document type and assigning the new number range series accordingly. Once this is implemented, will we be able to process our open POs with the old number range series?
Thank you.

Answer 1

let me clarify:
you wanted to create a new document type to address your needs, that is okay and is usual a maintenance activity in a running system, even it may cause a lot activities, but you are actually starting from zero and this will not at all have any impact to the existing setup and their number ranges. you can still use the old PO document types with their number ranges. Hence no negative impact to the old documents.
If you  want to continue with your old document types but using a new number range, then this has as well no impact to your old documents, because the number is only assigned and checked when you create new documents, it is not checked when you change old documents.