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Document Number: 622

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May I setup an error message if the customer does not fill in a required piece of text?

Yes, you can.

For example if your text input was:

<input type="text" name="VARName">

you could put the following into your form:

<input type="hidden" name="VARName_undefined" value="ERROR: please enter your name">

If the customer forgot to enter their name the cart would display a message informing them of the fact.

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