Field definition
Identifies different types of parameters (such as the seller's domain name, publisher's account ID, relationship, etc.) included in each data record.
These are the main types:
Field #1 defines the domain name of the seller (required)
Field #2 Publisher account ID (required)
Field #3 Relationship type (e.g., DIRECT or RESELLER) (required)
Field #4 Certification authority ID (optional)
Additionally, adding an optional extension field separated by a semicolon is possible.