Sync vs Async

D365F&SCM “Sync” replicates or synchronises data changes made in one system to another system immediately. For example, if you update a customer record in your CRM system, the change will be reflected in your D265F&SCM system through Sync.

“Async” refers to asynchronous data synchronisation where one system queues and then synchronises data changes to another system at a later time. With Async, the changes made in one system do not immediately reflect in another system but accumulate in a queue until they are processed for synchronisation.

Async is generally used when the volume of data changes is high, and there may be latency in transmitting the data between the two systems. This approach allows the synchronisation process to be decoupled from the primary transaction processing, ensuring that the systems remain performant even as data volumes grow.

In summary, Sync refers to immediate data synchronisation between systems, whereas Async refers to queued data synchronisation that occurs at a later time, allowing for more efficient handling of high volumes of data changes.