Financial data between systems.
WHAT TYPICALLY SYNCHRONISES
Customers Invoices Payments Credit notes Products or accounts
WHAT TO ESTABLISH FIRST
Which system is authoritative for each.
WHY IT MATTERS ACUTELY HERE
Two systems disagreeing about money is a reconciliation problem with real consequences.
WHAT DIRECTION USUALLY WORKS
Operational system to accounting system, one way.
WHAT TO MAP CAREFULLY
Tax treatment Currency and exchange rates Account codes Rounding
WHY ROUNDING SPECIFICALLY
Small differences accumulate into balances that do not agree.
WHAT TO AGREE
Where rounding happens, and to how many places.
WHAT TO NEVER DO
Recalculate amounts in the destination.
WHY
It guarantees divergence.
WHAT TO SEND INSTEAD
The exact figures, including any rounding already applied.
WHAT TO HANDLE
Documents already sent, edited at the source Voided and credited documents Payments allocated across several invoices
WHAT TO RECONCILE
Totals per period, both sides.
WHAT TO ALERT ON
Any difference.
WHAT TO KEEP
A record linking each document to its counterpart.
WHY
Without it, investigating a discrepancy is manual and slow.
WHAT TO INVOLVE
Whoever is responsible for the accounts, in the design.
