Meaning of Long String of Letters/Numbers in Recent Sales Email

[JessicaAmber]

In some of my Zazzle "Your Recent Sales" emails, I get a string of random numbers and letters after the royalty total.

Different sales emails will have different random strings (eg Cj0KCQjw4v6-BhDuARIsALprm31mrFfSjhZpU1KeooC2GeDIddzTH90SX6B2tZg0j0dN478HsQzmjhoaAp_gEALw_wcB ).
And some emails don't have a string at all.

Can anyone explain what these strings mean? Thanks.

[Sara_H · Accepted solution]

@JessicaAmber  I think it relates to 3rd Party cookies - check your royalty history report and see if that sale is a 3rd Party.

When there's no random string it could be a 'none' sale (i.e no cookie was set - customer had cookies blocked)

maybe?

[JessicaAmber]

@Sara_Hthat looks correct!
If it has No referrer, or Self as referrer, I get the blank string
If the referrer is a 3rd party, then a string will appear
Thank you for this insight!
(Now, if only there was a way to use this info for my own nefarious purposes. Like finding out if particular referrers like Pinterest have a specific string layout, which would let us know where that referral came from... 🤔)