In the settings, tick the tickbox "Disable to add followers by confirm Quotation" to restrict the customers automatically added as followers.

Now, confirm the quotation and create sale order.

In the follower's list customers are not added as the followers in the sale order.

In the settings, tick the tickbox "Disable to add followers by send by email" to restrict the customers automatically added as followers.

We press "Send By Email".

Now we send the email, you can see the recipient's/customer's name.

In the follower's list customers not add as the followers.

In the settings tick the tickbox "Disable to add salesperson as followers" to restrict the salesperson automatically added as followers.

Now, create a sale order.

In the follower's list salesperson not add as the followers in the sale order.