Alternate Keys which were introduced with CRM 2015 Update 1, gave us the ability to Upsert and Update records, by defining one or more fields as Alternate Key and use that field(s) instead of relying only on Primary Key. Alternate Keys can also be used for setting or updating the lookup instead of GUID. CDS\CRM … Continue reading "Using Alternate Key to set Lookup in SSIS (KingswaySoft)"