Validation rules

We offer a variety of validation rules that can be applied to fields. Rules will always be applied to required fields. For optional fields, rules are only applied when the field contains a value.

Order can be important

In some cases it is also important in which order rules are added. Let's say you want to make sure that a field has at least 20 characters. You can use the "Minimum" rule for that. But if you want to make sure that the value is at least 20, as in the number, you must add the "Numeric" or "Integer" rule before that.

Available validation rules

• Alpha
• Alpha Dash
• Alpha Numeric
• Business Identifier Code (BIC)
• Contains
• European Article Number (EAN)
• Email
• Ends with
• Hex Color
• International Bank Account Number (IBAN)
• International Mobile Equipment Identity (IMEI)
• Integer
• IPv4
• IPv6
• International Standard Book Number (ISBN)
• Maximum
• Minimum
• Numeric
• Regex
• Starts with
• URL
• UUID