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    Nintex Knowledge Base

    Error "There was an issue validating the data entered on the form: please try again" After Updating Nintex Forms

    Status: Validated

    ISSUE
    After updating Nintex Forms for SharePoint 2013 to version 2.9.4.0 or 2.10.0.0, the following error might occur in any form rule that has both Lookup() function and IsNullOrEmpty() function together: 

    Validation Error

    There was an issue validating the data entered on the form: please try again.  If the problem persists, contact the form designer.
    ERROR CODE
    RESOLUTION
    1. Create new form variable, in the formula add the whole rule to that variable.  For example: and(equals(lookup("List1","Title","Company1","Column1"),"Yes"),isNullOrEmpty(NewNameValue))
    2. Create new validation rule on the form, where you evaluate the form variable based if it is true or false.
    ADDITIONAL INFORMATION
    Example of rule containing both Lookup() and IsNullOrEmpty():

    and(equals(lookup("List1","Title","Company1","Column1"),"Yes"),isNullOrEmpty(NewNameValue))
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