What you’re seeing
- Logs or error emails reporting "AADSTS7000222: The provided client secret keys for app are expired".
- A backup service, scan-to-email relay, CRM sync or reporting tool stops connecting to Microsoft 365 overnight.
- Responses showing "invalid_client" when the integration tries to get a token.
- Nothing changed on your side, and the integration worked fine for a year or two.
Common causes
Every environment is different, but these are the causes our engineers find most often:
- The app registration's client secret reached its expiry date, which is often set to 6, 12 or 24 months when created.
- Nobody was alerted ahead of time because expiry notifications went to a former employee or vendor.
- A new secret was created but the old value is still stored in the connected application.
- The person who originally set up the integration has left, and no one knows which app registration it uses.
Why it matters
Expired secrets cause silent failures, which are the most dangerous kind for a small business. Backups may stop running, invoices stop syncing and mail-handling rules stop firing, and no one notices until data is missing or a customer complains. If a backup integration is the one affected, you may discover the gap only when you need to restore something. Tracking expiry dates is cheap compared with weeks of lost data.
How AskTechGurus fixes it
Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.
Tell us what’s happening
Submit a ticket in about two minutes. Paste the error, describe what changed, and pick your tier. No charge to submit.
A certified engineer diagnoses it
A vetted, US-based systems engineer claims your ticket, usually within minutes during business hours, and investigates over a secure remote session you can watch and end at any time.
Fixed and verified with you
The engineer resolves the root cause and confirms with you that it’s working. You don’t just get a workaround, and you get a plain-English summary of what was wrong.
Pay only when it’s resolved
Fixed price from $99, invoiced only after you approve the fix. If it isn’t resolved, you don’t pay.
Frequently asked questions
Why did this break with no warning?
Client secrets have a built-in expiry date set when they are created. Unless someone tracks those dates, the first sign is usually the integration failing.
Could we have lost data while it was broken?
Possibly. Any sync or backup that ran through the integration may have skipped those days, so it's worth confirming what was missed.
Can you restore the connection for us?
A certified US engineer can trace the integration and restore the connection with you over a remote secure session, from $99, and you pay only when it works again.