MailMergeService Custom Edits

[curiousgeorge]

I am looking to add a new entity type and make a few customizations to `Espo\Modules\Crm\Tools\Campaign\MailMergeService` . I tried to create the following:

<?php
namespace Espo\Custom\Tools\Campaign;

class MailMergeService extends Espo\Modules\Crm\Tools\Campaign\MailMergeService​

** my custom code here **

This file is under `custom/Espo/Custom/Tools/Campaign/MailMergeService.php`. I had followed the advice from here: https://forum.espocrm.com/forum/deve...custom-folders


But i'm not able to get espo to pick up and use my new custom mail merge service. Am i missing something?

[yuri]

Either use binding to bind a custom extended class. See in Dependency Injection documentation. But I'd recommend to create a custom API action class and call completely a copy-pasted and customized MailMergeService (don't remove the license headers). This will prevent it from breaking if we change the class in the future versions.