Same vendor, mid-market lineage — one shared account framework and posting defaults scattered across masters.
GP separates companies physically by database while sharing a single account framework, so segment semantics drift company by company even though the framework itself stays difficult to change. Posting defaults can originate in Posting Accounts Setup, on customer, vendor and item cards, in class records, or in the SOP item-versus-customer switch, which makes account determination a decomposition problem rather than a row copy. SOP and POP document lifecycles differ materially from D365 sales, purchase and transfer flows, and Dexterity, Modifier, Report Writer and VBA assets have no mechanical conversion path.
Segmented accounts + Posting Accounts Setup → Main account + financial dimensions + posting profiles