SharePoint 5,000 Item View Threshold Explained
A SharePoint library reaches 5,000 files, and then a view stops working or a flow misses records. The library still has room for far more content.
Microsoft's List View Threshold guidance says that a SharePoint list or library can contain up to 30 million items or files. The familiar 5,000 figure is the List View Threshold. It limits how much work certain database operations, such as a query, can do at once. Microsoft also notes that the exact threshold can vary.
Most users and many libraries will never run into the List View Threshold. But when a view, flow, migration, or permission change does hit a limit, the visible error rarely tells the complete story. You first need to understand which technical path is failing and why.
Do not split a library simply because it passes 5,000 files. First ask how people and systems find, show, synchronize, secure, and process those files.