Thanks for contributing to our forum. When you are creating or modifying an email template through your Auctiva account, the menus on the editor called Item Information, Your Information, Combined Info and Checkout Details each contain tags that can be used to insert transaction specific details for the Template Type you have selected.
If you would like to insert your eBay username into an email template, you should be able to create the appropriate tag by choosing the “Your eBay Username” option from the Your Information section regardless of which Template Type you have selected.
On the other hand, a tag that can be used to insert the buyer's username into an email template is only available when Insurance Summary has been selected as the Template Type.
I hope this helps. If you need any further assistance with your account, please feel free to contact our Customer Support team by mousing over the “Help” tab within your account and selecting the “File Support Case” option.