Forum Discussion
skatpally
5 years agoFormer Employee
One way to do this could be writing the Expression(Null Check or any validation Check) in the .expr file and then do a lookup.i.e lib.conf.validityCheck($Event.id) ( Field Name $Event.id you want to perform the validation on)
Refer to the documentation for more details.
https://docs-snaplogic.atlassian.net/wiki/spaces/SD/pages/1438110/Expression+Libraries