Microsoft 365 Error Help
Paste an error from PowerShell, Microsoft Graph or Microsoft Entra. Opselith shows a short explanation and practical next steps.
LOCAL PROCESSINGNO TENANT CONNECTIONFREE
ERROR LOOKUP
READYFind the next step
Use the full error message when you have it. Error codes usually give the clearest match.
The error text stays in this browser.
Check the context too. The same error can have more than one cause. Opselith matches common error patterns and does not change your tenant.
Common Microsoft 365 errors, explained simply
Error Help recognizes a focused set of common PowerShell, Exchange Online, Microsoft Graph and Microsoft Entra errors. It gives a likely cause and a short place to start.
Sign-in errorsAADSTS codes, MFA and app credentials.
Graph errorsPermissions, throttling, tokens and missing objects.
PowerShell errorsMissing commands and interrupted Exchange Online requests.
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