Will my friend be questioned about their previous denied entry into Thailand when attempting to enter from a neighboring country?

A user inquired whether their friend, who was denied entry to Thailand in November 2025, would face complications if trying to enter Thailand again from a neighboring country. Comments collectively noted that Thai immigration does not share entry denial systems with neighboring countries. However, a passport stamp marking the previous denial could alert authorities. Concerns were raised about whether the friend would experience the same denial if re-entering Thailand soon after the initial incident, along with suggestions to consider services that assist with entry despite past issues.