Unification takes the value for attribute from the first collector if no authoritative source is set for the attribute in Via L&G
2 years ago
Originally Published: 2015-08-13
Article Number
000062325
Applies To
RSA Product Set: RSA Via Lifecycle and Governance, IMG
RSA Version/Condition: All Versions
Issue
When you collect identity data from different data sources using multiple identity data collectors,you can specify for each user data model attribute, the collector that extracts the most significant value for that attribute. The collector that extracts that data is referred to as the authoritative source for that attribute.

To set Authoritative source navigate to Collectors -> Unification Config -> Attribute sources -> Edit -> You will find the list of user data model attributes -> Select from the drop down the appropriate collector to be the authoritative source.
 

If an authoritative source for a user attribute is not specified,then it would seem that RSA Via L&G( IMG ) Collectors would follow the processing order of the collector to find the value for this attribute . However this is not the default product behavior.
Tasks

If there is no authoritative source,  RSA Via L&G( IMG ) will take the value from the first collector in the processing order

Even if the value there is null.

Resolution

If you need the unification to assign the value to the attribute set the  collector that extracts the most significant value for that attribute.