Well you were supposed to add the Contact Name field to the Meeting Attendance object in Steps 83-85. Maybe you added it to Meeting instead?
Go to Setup > Object Manager > Meeting Attendance and Fields & Relationships and then do Steps 83-85 (but just Save not Save & New bc you're just adding the one new field.
Then after that, Contact Name should show up in 98
Well you were supposed to add the Contact Name field to the Meeting Attendance object in Steps 83-85. Maybe you added it to Meeting instead?
Go to Setup > Object Manager > Meeting Attendance and Fields & Relationships and then do Steps 83-85 (but just Save not Save & New bc you're just adding the one new field.
Then after that, Contact Name should show up in 98