I am using CDS Data Integrator to push data from Accounts entity of D365 CE to Customers entity of D365 FO. The account entity in CE has some custom lookup fields which are needed to be mapped with similar lookups in FO. I have created alternative keys in respective entities of the lookups in CE and added the alternate keys as integration keys in data integrator. After this the keys are available in the field list for mapping but the value for the keys in Query table are null, Have anyone faced this issue before and how to solve it.