Explore additional GDS and travel industry lessons that cover useful topics outside the main Amadeus, Galileo, and Sabre categories. Find practical guides, tutorials, tips, and explanations related to airline reservations, ticketing, travel technology, and other topics useful for travel professionals and GDS users.
In the airline industry, an ADM (Agency Debit Memo) is issued by airlines to travel agencies to recover losses caused by errors, policy violations, or misuse of booking systems. Understanding the common reasons behind ADMs is essential to avoid financial penalties and maintain a good relationship with airlines. 1. Reservation Booking Designator (RBD) Violations…
Table of Contents Introduction Understanding Void What About Refund? The Real Difference Void vs Refund — Side by Side Why This Matters Frequently Asked Questions Void vs Refund in Aviation: How to Avoid Fees and Save Money 📅 Updated: October 2026 ⏱ 6 min read ✈️ GDS HUB Editorial Picture this. Someone once changed…
Table of Contents Introduction What Is Revalidation? When to Use Revalidation Checking Revalidation with HEETTMS What Is Reissue? When to Use Reissue Revalidation vs Reissue – Comparison In Simple Terms Frequently Asked Questions Revalidation vs Reissue in Amadeus, Sabre & Galileo: Complete Guide 📅 Updated: September 2026 ⏱ 7 min read ✈️ GDS HUB…
Table of Contents Introduction What Is NDC? What Is GDS? Key Differences Between NDC vs GDS Advantages and Disadvantages Is NDC Replacing GDS? Which One Should You Use? Frequently Asked Questions NDC vs GDS: The Complete Comparison for Travel Professionals 📅 Updated: October 2026 ⏱ 9 min read ✈️ GDS HUB Editorial NDC vs…
Table of Contents Introduction What Is a Retention Segment? When to Use Retention Segments Amadeus — Retention Segment Command Sabre — Retention Segment Command Galileo — Retention Segment Command Why Retention Segments Are Important Best Practices Quick Reference Table Frequently Asked Questions Retention Segments in GDS: How to Keep Your PNR Active (Amadeus, Sabre,…
Table of Contents Introduction What Does ARNK Mean? When Do You Use ARNK? Why Is ARNK Important? Amadeus — SIARNK Command Galileo — Y Command Sabre — 0AA Command Does ARNK Affect Pricing? Quick Reference Table Frequently Asked Questions ARNK in GDS: How to Add Arrival Unknown Segments in Amadeus, Galileo & Sabre 📅…
Table of Contents Introduction 1) WCHR – Wheelchair Ramp 2) WCHS – Wheelchair Steps 3) WCHC – Wheelchair Cabin Quick Comparison Table How to Book Wheelchair SSRs in GDS Conclusion Frequently Asked Questions WCHR vs WCHS vs WCHC: Wheelchair SSR Codes Explained for Travel Agents 📅 Updated: October 2026 ⏱ 7 min read ✈️…
Table of Contents Introduction What Does “Per Sector” Mean? What Does “Per Coupon” Mean? What Is “Per Pricing Unit”? What Does “Per Combinable” Mean? What Does “Per Direction” Mean? What Does “Per Ticket” Mean? Fare Rule Structure Overview Why This Matters in Airline Pricing Frequently Asked Questions Per Sector, Per Coupon, Per Pricing Unit:…