Use a synchronization task for a publication or a subscription where the publication or subscription process requires mappings and filters that synchronization tasks support. For example, to read data from a CRM application and publish the data as is.

Use a mapping task for a publication or a subscription if you want to use an advanced ETL (Extract, Transform, and Load) process for the

Cloud Integration Hub

publication or subscription process. For example, you can use a mapping task to perform the following actions on a publication or subscription:

Run data quality rules on the data.
Add data from an additional source to the data that a publication publishes or to the data that a subscription consumes.

When a publication uses a mapping task, you can create a compound publication that publishes data to multiple topics.