How to specify that attribute values to Null whenever a value is changed to Null in the Identification Reconciliation EngineIssue There is no option available to specify that attribute values are to be set to Null whenever value is changed to Null in the IREThe requirement is to ensure that attribute value are updated to NULL when the sourced value is changed to NULLReleaseRome on earlierCauseBefore San Diego release, for the ETL workflows, this was a gap where users were not able to pass empty values for CI fields. In San Diego, we added support for users to pass as kind of a special string from the IH-ETL which the IREMessageListener will consider as "" and assign it to the specific field before calling IRE. Before San Diego, there was a limitation in the transformer where "" or null values for a field were ignored and users were not able to set empty values through ETL workflows. However, they could do so from other workflows e.g. Horizontal Discovery, Patterns Discovery etc.ResolutionThis specific value was added to bridge that gap for IH-ETL users to assign empty values to specific fields for a CI in the CMDB. So all users need to move forward from San Diego to map a field in IH-ETL and the IREMessageListener will convert it to "" and call the IRE accordingly. Therefore, please consider upgrading a sub production instance to San Diego version or onward and test the functionality before applying changes to production.Related LinksFor more information about H-ETL and the IREMessageListener please refer to our documentation page IntegrationHub ETL store app