This app provides an overview of open and completed purchasing documents for inventory managers. It allows users to view documents by filter criteria, post goods issues to document items, calculate stock balances, create deliveries, and access related information. Key features include filtering purchasing documents, verifying subcontracting stock, posting goods issues, calculating stock balances, navigating to related object pages, and creating deliveries of components from selected document items. The app documentation provides additional details on using and implementing the solution.