Validation – empty/non empty vlookup field › Forums › vLooup for SharePoint › Validation – empty/non empty vlookup field This topic contains 1 reply, has 2 voices, and was last updated by Alexander Bautz 3 years, 11 months ago. Author Posts August 11, 2015 at 16:17 #8110 Říha MichalParticipant Hi Alexander, is it possible to make validation – if vlookup field is required it must contain at least one child item? Thanks! Michal August 18, 2015 at 22:12 #8227 Alexander BautzKeymaster Hi, Sorry for the delay. It’s not possible to set this field as required, but in the latest (BETA) version of vLookup you can access the data object and check the count of vLookup children using a custom function. This way you could disable the save button or in some other ways inform the users about this being required. Look at the user manual for details Alexander Author Posts You must be logged in to reply to this topic.