I am trying make the Billing Status field required only when the A La Carte field is checked (true) or not blank (otherwise it is not required). I don't know whether to set this up in infopath or on the Sharepoint list or if it is possible?
How do I get this formula to work in List Validation settings?
IF([A La Carte]"Yes",(AND(NOT(ISBLANK([Billing Status])),TRUE)
[A La Carte]="Yes"