Placeholder Text
You have the option to provide placeholder text, offering a brief hint or example to guide respondents on the expected input. This aids clarity and encourages accurate responses.

Character Limit
The field can be configured with a specified character limit, ensuring that responses remain within a defined range.
The range is between 0 - 255 characters. 
Restrict input on reaching the character limit: When enabled, respondents cannot enter a value beyond the configured range. An error message is displayed as soon as the limit is reached.

Initial Value
Provide the initial value to be displayed when the form loads. This allows you to prefill the field with default content, streamlining the data entry process for respondents.

1. Mandatory: Ensure that respondents cannot submit the form without entering the data in this field.
   
2. No Duplicates: Prevent the submission of identical entries.

1. Go to the Properties of the Single Line field.
   

2. Under Input Type, select Custom Entry Format from the dropdown.
   
   

3. Under Entry Format, enter the format in which you wish to receive the responses using the below denotations:
   

   W	Uppercase letters
   w	Lowercase letters
   L	Any letters (case insensitive)
   d	Digits
   *	Alphanumeric characters
   @  #  $  %  ^  &  *  (  ) -  _  +  =  \ |  :  '  "  ,  .  / Space	Special characters

4. To accept any of the above mentioned characters as input from respondents, you must prefix  \  with these characters as shown:

Alternatively, you can generate a format in which you wish to receive the field input. To do so,

1. Click the Generate Format option in the right corner of Entry Format under  Properties.
   

2. In the pop-up, enter an example in the desired format.
   
   For example: If you wish to collect the PAN of your respondents in a format with the first 5 characters being alphabets, followed by 4 numeric values, and ending with an alphabet, you can enter an example of the format as shown:
   
   

   
   
   Note: If you wish to have a static content in the format, you must enclose the content in curly braces {}.
   For example, {ZYK} - 123 will generate the format  ZYK - ddd.
   
   

   

   
   

3. Click Generate.
   

4. Click Use Format to use the generated format under Entry Format.
   
   You can customize the default error message  Entry does not match the required format under Settings > Custom Messages > Field Validation Messages to help your respondents enter the response in the required format.

1. System Default
   
2. Upper Case
   
3. Lower Case
   
4. Proper Case