Microsoft OAuth refresh token invalid_grant — What it means & how to fix it
Blog post from Nango
Integrating with Microsoft using OAuth 2.0 can sometimes lead to refresh token failures, often indicated by an "invalid_grant" error, which can disrupt scheduled jobs and user actions. This issue arises when a refresh token, used to obtain a new access token, becomes unusable due to reasons such as inactivity expiration, fixed lifetime for single-page applications (SPAs), credential changes, or policy updates like Conditional Access and Multi-Factor Authentication. To address these failures, it is crucial to read the AADSTS error code for insights, check for recent changes in tenant or user accounts, and, if necessary, guide users through re-authentication. Preventative measures include tracking token age, storing refreshed tokens promptly, and monitoring for policy changes. Nango, an open-source authentication layer, offers a solution by managing OAuth token lifecycles, ensuring secure storage, automatic refresh, and clear re-authentication signals, thus simplifying Microsoft API integrations.
No tracked trend matches for this post yet.
Use this post, company, and trend context to find content marketing opportunities, perform competitive analysis, or address product feature gaps via the Plushcap MCP server or the Plushcap API.