How to add order reference number payment confirmation and order status notifications emails

[rajlaskar]

Hi

 

I am using prestashop 1.5.6.1.

 

I would like to display order reference number in all email notifications, for Order confirmation mail i have added the reference number in PaymentModule.php.

 

Now i want to add the reference number in all order status notification emails, like payment confirmation mail, shipped, Preparation in progress etc.

 

please let me know which file shall i change to add this in email notifications

 

Thank you