If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

Why did you think you were invited?
Which joining instruction was unclear?
What sender context was missing?

Author notes / illustrative keys where applicable:
1. Read for purpose comprehension. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score.
2. Read for join clarity. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score.
3. Read for sender context. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score.