====== CB Split Admin - Addons > Maropost > Error Codes =====

Help section provides help to website admin regarding how to use veriables, assets, pages, tests, products and purchase token

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{{::maropost_error_codes.png?direct&800|}}
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Maropost api has following error codes.

|Error Code|Error Message|
|0|Unknown Error Occurred|
|422|You have previously requested that we NEVER email you again to this email address - please register with a new email address.|

These error code descriptions you can change incase you need to match specific string in javascript code.

Example code to handle error response.

<code html>
jQuery.ajax({
        url: "/api/maropost/add-contact/list-slug",
        method: "GET",
        data: {
          email : document.querySelector('input[type=email]').value,
        }
      }).done(function(data) {
         // success code
      }).fail(function(error) {      
        if(error.responseText.match(/Unknown/)){
          alert('Please try again');
          return false.;
        }        
});
</code>