You can use the reconciliation rules to add new assets, update existing asset fields and update the data schema. CCS supports the following rule types for data schema:
Pre rule - The Pre rule is run before the data is imported into the external system data schema. The pre rule lets you set a temporary value to a particular field in the data schema for reconciliation.
Add rule - The Add rule lets you add new assets to the asset system at a specific location.
Update rule - An Update rule is applied on the existing assets to update the asset fields.