Create Field Validation Formulas

Input validation formulas provide a means to ensure that users enter correct and complete data by preventing users from saving a document if a field's value is invalid. Every time a document is saved or refreshed, the input validation formulas are executed to ensure that the proper values have been entered. For each field, the value is tested according to the formula, and if the value is acceptable, the formula returns true and the document can be saved. If a value is unacceptable, the formula returns false and the document cannot be saved until the proper data is entered. Additionally, the user is prompted with a message supplied by the developer to explain the problem.

When creating input validation formulas, ...

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