Avoid empty searches by defining mandatory search values

When using ELO in particular, if a search term is not specified—for example, a customer number left blank—a full search is performed, resulting in all hits available in the DMS system being returned.

To prevent this, this feature allows keywords in the search definitions tags to be marked as “Mandatory Value.”
If the corresponding field is left blank, the user receives an error message, and no automatic search is performed.