You have full permissions to a SharePoint file, but Copilot refuses to read it. This problem usually occurs because Copilot relies on additional data access settings beyond standard file permissions. The cause is often a missing search index, a blocked Graph API connection, or a restrictive data source policy in the Microsoft 365 admin center. … Read more
You open Visual Studio Code and see a red error banner: “GitHub Copilot: Request failed with status code 401.” This means Copilot cannot verify your identity with GitHub servers. The 401 error appears when your authentication token is expired, missing, or revoked. This article explains why the error occurs and provides step-by-step fixes to restore … Read more
When you ask Copilot a question about your company data such as upcoming deadlines from your project plan or the status of a sales deal in your CRM you expect answers grounded in your Microsoft 365 tenant. Instead you might receive a vague response that reads like a general definition or a sample scenario that … Read more
You are working on a lengthy Word document and Copilot suddenly stops responding. The Copilot pane shows a spinning icon or a message that the request timed out. This happens because Copilot has a hard limit on how much text it can process in a single session. This article explains the technical timeout limits, how … Read more
When you see the error “Copilot couldn’t process your request” in Microsoft 365 apps like Word, Excel, or Teams, your work stops. This error means Copilot cannot complete the action you asked for. The root cause is often a temporary network glitch, a missing or expired license, or a conflict with a browser extension or … Read more
You open Copilot in Microsoft Edge, have a productive conversation, then refresh the browser tab. The entire chat history is gone. This problem affects users who rely on Copilot for research, drafting, or troubleshooting across multiple sessions. The root cause is a browser storage setting that deletes site data when the tab closes or refreshes. … Read more
You open a Word document or a PowerPoint file, ask Copilot a question about the content, and it replies with something like “I can’t help with that” or “I don’t have access to your files.” This happens even though the file is open on your screen. The root cause is almost always a permissions or … Read more
When you use Copilot in Microsoft 365 apps, you may see a 429 error with the message Too Many Requests. This error stops Copilot from generating responses, summarizing documents, or answering questions. The cause is hitting a rate limit enforced by Microsoft to protect service stability. This article explains why the 429 error occurs and … Read more
When you ask Copilot to summarize an Outlook email thread, you might notice it leaves out certain messages. This happens most often with emails that contain attachments, inline images, or complex formatting. The root cause is how Copilot reads and interprets the content of each email in the thread. This article explains why Copilot skips … Read more
You ask Copilot in Word to draft a report, a proposal, or an email, and it stops mid-sentence or mid-paragraph. The generated text cuts off abruptly, leaving you with an incomplete draft. This truncation happens because Copilot has a fixed output token limit per generation, and it also respects the context window of the current … Read more