In the "add email" of the Marketing script, if I fill in a custom recipient, will it affect the object to which the script is applied?

If the "customize recipients" field is filled in the "Add Mail", this mail will not be sent to the customer who is applied to this contact script, and will be sent only to the email in the "customize recipients" field.

This function can be used to make emails to send an email to notify the customer service personnel or the person in charge at a specified time. If there are customer informations inserted in the email (such as name, phone number, etc.), it will provide customer informations. This feature would make customer service and person in charge convenient to identify customers regarded in the email.