Hi Shivanshu,
1. The Knowledge Article entity does not have an email template, it does not belong to the entities of the email template.
Email templates only support these entities.

Therefore, in your environment, you cannot use the email template of the current entity "Knowledge Article".
BTW, in my environment, when I select an email template in the workflow, I can select the current entity "Knowledge Article", but it does not have any email template. At least I did not encounter the error message.

2. If the Owner is a team, since the User and the Team are two different entities, its User is empty, so User's dynamics fields have no data.

In summary, I would recommend you do not use email templates in the workflow, but create new message, set conditions to distinguish whether the owner is a user or a team and use the dynamic values of the workflow to write the email.


