Hi,
If you are facing difficulties to sync Items and go with the description below.
CAUSE\SOLUTION:
There are some limitations with enabling this feature in an existing environment, as outlined at the following documentation:
nam02.safelinks.protection.outlook.com/
Specifically, the following points and steps:
• New mappings are created for items and resources.
• Existing mappings are deleted.
• A data upgrade creates unit groups for items and resources.
• Dynamics 365 Sales does not allow you to change a unit group for a product. Therefore, you must retire your products and uncouple the items and resources, and then synchronize by creating new products in Dynamics 365 Sales.
• To use the new mappings, you must synchronize unit groups, item unit of measure, and resource unit of measures. You must also resynchronize items and resources.