Value Masks
You can use a value mask for fields where users need to enter data in a specific format. This enhances consistency and reduces the possibility of input error.
A value mask is a linked series of symbols you can use to define:
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The type of data users can enter
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The text that will show in the current field
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The type of data user need to enter – Upper case or numbers, for example
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The numeric range allowed for the numeric portion of a field or label