For example, you want to differentiate between contacts based on their location, so you can create a field for it and select the appropriate value (say, the country or city) while storing contacts in Maropost.
đź“‹ Note: When you create a new field, it is not added to existing contacts; however, when you update the contacts, the field is created for them.
The default fields available to you are first name, last name, email, phone, and fax.
đź“‹ Note: You can set the default value for the "First name" and "Last name" default fields on the field index page. If a default value is set, it will be added for the contacts whose first name or last name is not present at the time of import. This is useful while using contact tags in the content or subject line of campaigns.
The following data types are supported for custom fields:
- Strings – A string can be anything (alphabets, numerals, symbols, special characters, etc.) It has a maximum length of 255 characters. (No default value required)
- Integer – An integer is a whole number (not a fraction) that can be positive, negative, or zero. It has a maximum length of 11 digits. (Default value is needed to save this field)
- Boolean – The boolean field type is a binary variable that can have one of two possible values, 0 (False) or 1 (True). This is also known as a True/False field. (Default value is "True," but can be changed to "False")
- Date/Time – This field type is used for values that contain both date and time parts. We store it in 'YYYY-MM-DD/HH:MM:SS-05:00' format. (No default value required)
- Text – A text field type can be anything in the text. (No default value required)
- Float -Â A number with decimal points. (for example - Currency)
The Fields index page is where you can view and manage your default and custom fields:

Creating a New Custom Field
Perform the following steps to create a new custom field:
- In Navigation, go to Audience, and select Fields.
- On the Fields page, in the Custom Fields tab, click the Add Custom Field button.
- On the Add Custom Field dialog box, select from or enter values for the following:
- Field Name – Enter a name for the new field.
- Field Type – Select a data type for the new field.
- Default Value – Enter a default value for the new field.
- Display Name – Enter the name to be displayed on the screen.
- Description – Enter a short description of the new field.
- Add to Contact Overview page edit options – Set the toggle ON to display the custom field data on the Contact Overview page.

- Click Save.