Tanushree Maiti
Tera Patron

Hi @dirkdp 

Creating a Database View is the best practice for reporting on custom variables, as they store data in a key-value format.

Try this:

Report on Item Variables in the Service Catalog with a Database View

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Regards
Tanushree Maiti
ServiceNow Technical Architect
LinkedIn: https://www.linkedin.com/in/tanushreemaiti