What is dual-write in Dynamics 365?
Dual-write is Microsoft's integration feature that syncs data in near real time between Dynamics 365 Finance and Operations apps and Microsoft Dataverse. Because Dynamics 365 Sales and Customer Service store their data in Dataverse, records such as customers and products can stay aligned across ERP and CRM.
Why it matters for your business
It reduces custom integration work between sales and operations, so a quote in Sales and an order in Supply Chain Management refer to the same customer. Table mappings still need planning and testing, because data quality issues surface as sync errors.
A sales rep creates a new account in Dynamics 365 Sales, and moments later the same customer appears in Finance, ready for credit checks and invoicing.