When you run a Provisioning Data Import (PDI) to import a new data set into an existing campaign in Identity Portal, you may observe that previously imported data is missing. This behavior occurs because the new import process overwrites the existing data within the campaign.
Identity Portal 14.5 & 15
This behavior is expected when using the same Universe for multiple imports. When you import a new data set using a Universe that already contains campaign data, the system overwrites the existing records with the new information.
To prevent data from being overwritten, you must isolate your backend data sources by using separate Universes:
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