Need source of PO Charge account for OTBI report

Summary:

what is the database source field for the PO charge account - would like to include in an OTBI report

Content (required):

PO charge account on the page - what database field stores this data?

also, would like to have sample report on PO by Charge account - specifically, would like to report on PO by account number

Version (include the version you are using, if applicable):

23B

Code Snippet (add any code snippets that support your topic, if applicable):