How to Customize the Subject Line for the Ecommerce E-mail Templates in Kentico
If you are willing to Customize the subject line for the E-commerce e-mail templates. You can find the key value in the ~\CMSResources\CMS.resx file. In this case it should be "ordernotification.customersubject" and "ordernotification.administratorsubject".
You can change the values for these key directly in the resource file. The "{0}" is a macro and the orderID is displayed instead.
Here is the Other way is to add these keys to the Site Manager -> Development -> UI Cultures -> click to edit En culture -> New string. Add the key value and the text you want to have. This will ensure that you will be able to easily translate the subjects in other languages.
You can change the values for these key directly in the resource file. The "{0}" is a macro and the orderID is displayed instead.
Here is the Other way is to add these keys to the Site Manager -> Development -> UI Cultures -> click to edit En culture -> New string. Add the key value and the text you want to have. This will ensure that you will be able to easily translate the subjects in other languages.