My company has a corporate travel agent. I normally book my travel on united.com, but I noticed some cheaper business class fares through the corporate TA. Looking at the fare rules, I saw some rules I'm not used to:

TICKET ENDORSEMENTS:
THE ORIGINAL AND THE REISSUED TICKET MUST BE ANNOTATED - UA ONLY NONEND / NONRFND - IN THE ENDORSEMENT BOX. NOTE - TEXT BELOW NOT VALIDATED FOR AUTOPRICING. TICKETS MUST SHOW BY THE USE OF AN INSERT OR STICKER THAT TRAVEL IS AT A SPECIAL FARES AND SUBJECT TO SPECIAL CONDITIONS.

TOURS:
TOUR CODE AAABB MUST BE PLACED IN THE TOUR BOX ON THE TICKET.

NEGOCIATED FARES:
FARES MAY BE VIEWED/PRICED/TICKETED BY CCDD. FARE RECEIVED FROM EFGH. NO COMMISSION IS ALLOWED. PLACE THE FOLLOWING INFORMATION ON THE PASSENGER COUPON: TOUR CODE AAABB. PLACE BT IN THE FARE BOX. PLACE THE FOLLOWING INFORMATION ON THE AUDITORS COUPON: TOUR CODE AAABB.

Looking at the United website, there are some special rules about tour tickets:
https://www.united.com/CMS/en-US/Mar...es/united.aspx
"Certain specialty tickets (including but not limited to unpublished, consolidator/bulk, group, tour and opaque tickets where the fare you paid is not provided to United) will earn award miles based on the flight distance2 and the purchased fare class using the chart below:"

How do I know if our fares fall into that category? Are there any downsides to not booking directly with UA? The tickets I'm looking at book into Z or D.