One source per piece of data
Contacts belong to the CRM, invoices to the ERP, orders to the store. Each piece of data has an owner; the other tools read it or suggest changes.
Document the flows
A simple diagram shows which data moves, in which direction and when. It serves as the reference when a discrepancy appears.
Track failures
A sync that fails silently creates duplicates and gaps. Logs and automatic retries are essential, as explained in our CRM & ERP integrations and internal business tools.