A. You should have modified the standard mapping itself instead of copying and creating a new one. Only one mapping is allowed.

B. You must set the "MKL_DIRECT_LEAD_TO_OPTY_MAPPING_NAME" profile to the name of your custom mapping.

C. You must modify the Business Process Flow "Copy Lead To Opportunity Map" to refer to your custom mapping.

D. You need to raise a ticket to My Oracle Support to bounce the server.

E. You must modify the Object Workflow "Copy Lead To Opportunity Map" to refer to your custom mapping.