Minimum length. Minimum number of bytes that this field can contain to be considered valid. If the field contains fewer bytes than the number entered, an error will be generated. You can enter zero (0).

Maximum length. Maximum number of bytes that this field can contain to be considered valid. If the field contains more bytes than the number entered, an error will be generated. If you enter a negative number (for example, –1), a maximum length error will never be generated for this field, regardless of its value.