GL account not opened on a company code but PO creation permitted

Hi to all,

I ask your opinion on this issue:

- I have a GL account NOT opened on a company code

- I create a PR and the system let me to do it: OK, PR is an internal document so I realize

But then I create a PO in ref.to that PR and...the system let me do it and it should not let this because PO is a cost object..Infact if I create a PO without ref.to that PR with that GL account and company code the PO can not be created..It is true that for the PO created in ref.to that PR it is not anymore possible to do GR, IR etc.but it seems not correct that the system let me to create however the PO.

..For the moment I have not founf OSS Notes.

Please advice and thanks in advance

BR

Massimiliano