Fix SharePoint Add-In Filename Error

Posted on | November 20, 2025 | Comments Off on Fix SharePoint Add-In Filename Error

A filename error keeps popping up in my SharePoint add-in whenever a user tries to access a file. Uploads work normally, but as soon as the document is opened the add-in throws an error and the action fails… (Budget: $10 – $30 USD, Jobs: C# Programming, Debugging, JavaScript, Microsoft, Sharepoint, Software Development, Software Engineering, Technical Documentation)