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Marriott MARSHA Reservation System: Architecture, Operations, and Modern Integration Guide (2026)

"MARSHA (Marriott’s Automated Reservation System for Hotel Accommodations) represents the foundational central reservation engine built by Marriott International to manage room inventory, rate structures, and global distribution across its portfolio of over 30 hotel brands. This guide examines MARSHA's core architecture, its role in modern enterprise hospitality technology, operational workflows, and integration dynamics within 2026 distribution ecosystems. Understanding MARSHA: Core Architecture and Enterprise Functionality Developed originally on high-availability mainframes using Transaction Processing Facility (TPF) architecture, MARSHA se..."

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