When configuring a Data Sync, you may have the option to add in extra configuration sections, such as an Request Headers, under the "Add a Section" drop down tab in the Connection Experience (Image 1).
To add in Request Headers, fill in the following parameters:
Header Type:
Authorization: You can use an authorization request header to provide credentials that authenticate a user with a server, allowing access to a protected resource. Selecting this header defines the Header Value as a password field.
Content-Type
Header
Name: The name of the HTTP Header to add
Is Encrypted?
Header Value