An OTA channel manager is a tool that helps manage online travel agents (OTAs) on a single platform. It can be used by hotel sales and revenue managers to update rates and rooms in real-time. For tour and activity operators, an OTA channel manager can sync rates and availability across multiple OTAs, which can be difficult to do manually. 

An OTA channel manager acts as a link between a property and its online distribution channels, including OTAs, metasearch engines, GDSs, and online marketplaces. It ensures that any changes to pricing, availability, or restrictions are updated immediately. 

Some features to look for in an OTA channel manager include: Reliable customer support and training, Real-time notifications and alerts, Multi-language and multi-currency support, Mobile-friendly interface, and Channel-specific promotions and offers.