Decomposing Posting Accounts Setup into posting profiles

Build the posting crosswalk that turns GP's distributed account-default hierarchy — posting setup, master cards, class records and the SOP item-versus-customer switch — into D365 posting profiles and inventory posting rules.

What you will be able to do

• Build a posting crosswalk keyed on observed source behaviour rather than on setup tables alone
• Resolve whether revenue and cost of goods sold are item-driven or customer-driven before designing item groups
• Separate receipt and invoice events that GP could combine in one document path
• Identify the four high-collapse-risk posting rules and design their residue explicitly
• Prove posting equivalence with a replay test rather than a setup comparison

Introduction

If the chart-of-accounts redesign is the first design gate, the posting crosswalk is the second — and it is the one that most often determines whether the first close after go-live is calm or forensic.

Where a GP posting default can come from

Account selection in GP is a hierarchy, and the hierarchy is what makes decomposition necessary.

The ten posting rules

The source package identifies ten posting rules that any GP programme must resolve. All are rated at medium confidence, meaning the pattern is sound and the estate-specific detail is a validation item.

The canonical transformation model

The source playbook frames all of this through three normalisation steps, applied in order:

Proving the crosswalk

Select a representative document set per company: each SOP path in use, each of the three POP receipt types, transfers including in-transit, adjustments and counts, settlements with and without discount, and a multi-currency example of each. Capture the source's posted distributions for each, at the reconciliation key level.

What must be validated in the client estate

The ten rules and their target families are well supported. The following are not, and are validation items in every engagement:

Knowledge check

Summary

The posting crosswalk is where GP's distributed default hierarchy is pulled apart and re-homed.