I am using Dynamics NAV 2016.  Is it possible to create a validation rule that allows you to exclude more than one item?  I cannot get it to work for more than one vendor. 

Validation Rule:

Criteria Lines:

GLACCOUNT   7551

PROGRAM    1310

VENDOR    <>V-SACRGR01|<>V-HYDRXX01

Rule Lines:

ENROLL NO   M0001..M0009

Objective:  When a requisition is created using the G/L Account and Program number identified, we want the user to always include the enrollment number.  However, for two separate vendors no enrollment number is required.