Need to map multiple Lead Custom Fields to a single Lead Standard field. Existing Salesforce account with contact data. The account was setup using custom fields for importing lead/contact information from multiple lead providers. Lead providers each had unique names for fields which required that custom fields be created for automatic import into account. The existing account requires that Lead Custom Fields be mapped to a single Lead Standard source. Example - Lead Custom Fields Address1, Address2 need to be mapped to Lead Standard field - Address. See attached file with list for Lead Custom Fields.