A welcome email helps in creating a first impression amongst a new customer, blog or newsletter subscriber using the emails. The admin can even send welcome emails to the newly registered customers. Facilitates admin to send welcome email to customers that are added from the admin panel. For example, thinking that your store is converted to Magento platform from any other CMS then, in such a case it would not be valid enough to ask them to register again in the same store. Sending welcome email would create bad impact on the customers. Here, in such case, he would want to disable welcome email after creating new customer from admin in Magento 2.