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Mask input

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Input masks provide a visual guide that makes it easier for users to enter information in a specific format, such as dates and phone numbers. Masks can be filled in on Text lines .

You are actually forcing the visitor to enter a form field in a certain way. Think of a postcode (first four numbers and then two letters) or a Dutch telephone number (ten digits). CampaignSuite adds the IBAN mask that you can choose from by default.

This can be set in the Appearance tab of a field:

Possible masks can be:

Description Mask
Zipcode
9999 aa
Date
99-99-9999
Phone number
9999999999