Can I require that mobile users provide a response in a specific format?

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It is possible to require your users to enter data in a specific format using the Field Mask field setting.

Field Mask

You may have an ID or code that is formatted as LLL000000, where L is a placeholder for a letter and 0 for a number. With this example, you can ensure that the first three characters are letters and the last 6 are numbers.


Visit the Help Center article, "How to use the Field Mask Setting," to learn about the eight field masks.

Please Note

Field Masks are not yet available in Builder BETA.

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