How do I report a message in my inbox as inappropriate? – TripAdvisor Help Center

To report a message on desktop:

Go to the Messages section of your profile.
Open the message you are reporting.
Click on "Report" and "Submit".

To report a message on the app:

Go to your inbox.
Tap on the message you are reporting.
Click on the 3 dots on the upper hand corner.
Click on "Report" and "Submit".