The customizer can keep rules for copying data objects in the administration tables (under Development/Other/Exceptions/... exception groups). The Transfer objects/Only active function checks these rules. If a rule is true, the record is not transferred. During customizing, further rules for use with any other functions can be placed in the tables.
Exceptions, exception groups
Attention: Managing the exception regulations requires knowledge of the CRM data model, which it is provided in a customizing training.