CAF mistake: need advise from residents please! - clue_less

[ArchivalUser]

I made the mistake of including an experience on my Common Application Form as an upcoming research-related experience. However that did not work out, and I ended up doing a clnical observership.
Now that I cannot cannot chance the CAF as its already submitted to ERAS, what should be the right thing to do?
I have already interviewed and am worried about the credentialing verification. Would it be proper to let the program know after match results are out?

[ArchivalUser]

Do you think they check your credentials thoroughly?

[ArchivalUser]

I don't know. Thats part of my question: Do programs have credentialing services that verofy each and everything mentioned on resume?
What would be the best time to inform them of changes in resume?

[ArchivalUser]

I would tell them if they ask. Your "lie" seems like nothing to me,