Do I need a new onward ticket to enter Thailand if my previous one has expired?

The user inquired about the necessity of presenting a new onward ticket upon entry into Thailand, following the expiration of a previously purchased, but fake, ticket used for visa application. Responses indicated that the onward ticket is primarily required for check-in at the departing airport rather than for entry into Thailand. Additionally, a user noted that as long as the onward ticket is from a different airline, it's likely that airline systems won't check the expired ticket, and immigration typically does minimal verification.