ApplicationLink is an integration platform that automates billing and invoice workflows between PSA systems, cloud marketplaces, and accounting software. It connects popular tools like Autotask, ConnectWise, HaloPSA, Kaseya BMS, and Syncro with accounting platforms including QuickBooks, Xero, Exact Online, and Business Central. The platform automates invoice creation, data synchronization, and billing reconciliation, eliminating manual data entry and reducing errors for MSPs and IT service providers.