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In the Validation Message field, enter the desired message that will pop up if the entered information does not meet your validation condition. You can enter a different message for each language of your application. If you do not specify a validation message the user will see a generic message like "The response is out of range." It is strongly recommended to always use a useful validation message.
Examples
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This Validation makes sure that the phone number entered contains 10 digits.
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Complex Example
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This Validation makes sure that the date of birth is both in the past, and between the ages of 10 and 59.
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