Your finance system and your order system each keep a version of the same sale, and at month end somebody has to make them agree. These are the ERP and accounting systems that connect.
An ERP or accounting connection carries the sale one way and the record the other. Out goes what happened: the order and its lines, the taxes and discounts, what was charged for shipping, the customer, the payment, and later the credits and returns that undo part of it. Back comes the finance system's version of the same event, with its own document numbers attached. Alongside both runs the stock movement, because the goods leaving the shelf and the cost of those goods are the same event described twice, in two different vocabularies.
This page is the ERP and accounting lane, covering full ERP suites, small-business accounting packages, and the finance tooling that sits between them and the rest of the stack. The full integration directory covers sales channels, fulfillment and shipping as well. If the open question is how stock and the books are supposed to line up, start with ERP inventory management; if it is what the numbers themselves mean once they land, see inventory accounting.
The sale, in the form finance needs it: the order and its lines, taxes, discounts, what was charged for shipping, the customer and the payment, plus the credits and returns that later undo part of it. Running alongside is the stock movement, because goods leaving the shelf and the cost of those goods are one event described in two vocabularies. The return leg is the finance system's own document numbers coming back.
It depends on who has to answer questions about them later, and it is worth deciding before anything is connected rather than after. Per-order records let you trace a single customer query all the way through; summarised journals keep the ledger readable at high volume. Different systems favour different answers, so ask what a given connection does by default and whether it can be changed.
Most often in timing and in scope rather than in arithmetic. The two systems may close on different days, count a return as settled at different moments, or disagree about whether goods in transit belong to you yet. Before blaming the connection, establish which events each side counts and when it counts them. Our guide to inventory accounting covers what the numbers are supposed to represent.
Try the search box first, since finance systems are often listed under the vendor name rather than the product name, and some are listed under the middleware that fronts them. If it is genuinely not here, select any card marked Request, or use the band below, and the request reaches the team with the system name attached.
On the full directory at /integrations, which lists every lane. This page is the ERP and accounting lane only, so the count in the results bar is the number of ERP and accounting integrations rather than the number of integrations overall.
Don't see yours?
Tell us which ERP or accounting system you run and what has to reach it, and the team will reach out to talk through what connecting them involves.