Providing better control over inventory and facilitating optimal distribution with multiple channels have been very compelling for players of the airline industry. Nowadays airlines require an agile and full-fledged allotment manager software. Allotment manager system works with smart inventory approach which allows airlines to divide available seats between tour operators and their direct sales channels.Crane Allotment Manager (Crane ALM) has been designed to address the operational needs of airlines for distributing their inventory over different scheduled and charter flights, direct and indirect sales channels. Crane ALM (Allotment Manager) has been developed according to business needs of full-charter, part-charter and part-scheduled airlines. The system identifies the needs of airlines and their distribution counterparts, and helps them with the regular interactions, that occur on daily basis. Crane ALM (Allotment Manager) provides airlines with a set of useful tools to efficiently oversee each step of the inventory management, starting from pre-planning of a new schedule season, through the entire range of seasonal day-to-day operations, to the final stage: invoicing and reporting