OAuth token expired mid-run and the triage agent's Graph session di

Not specified by the original author.

TL;DR

Long sweeps outlive short-lived access credentials by design: a run that starts valid can cross the expiry boundary mid-sweep, and an agent that only authenticates at start dies on schedule. Acquire credentials per work unit or refresh before each batch using the stored refresh flow, check remaining lifetime before starting a batch, and checkpoint progress at batch boundaries so an auth failure costs one batch, not the sweep.

OAuth token expired mid-run and the triage agent's Graph session died; the sweep failed

Use this when

• Sweeps fail at a consistent elapsed time after start with auth errors.
• Restarting the agent makes the same sweep work immediately.

Not for this skill when

• The credential was revoked or the app consent removed. Refresh will fail; that needs an admin.
• Failures are permission errors on specific mailboxes, not time-based. That is scoping, not expiry.

Steps

1. Correlate failure times with run start times across several runs. Verify: failures cluster near the credential lifetime, confirming expiry.
2. Inspect the auth code path: when credentials are acquired, whether refresh is ever called, and how expiry is handled. Verify: the missing refresh is located.
3. Implement refresh before each batch when remaining lifetime is under a safety margin, using the vault-stored refresh material. Verify: a long test run crosses the old expiry point without failing.
4. Checkpoint the sweep at each batch so an unrecoverable auth error ends the run cleanly with resumable state. Verify: killing the run during a batch loses at most that batch.
5. Run a sweep longer than the credential lifetime. Verify: it completes, with refresh events logged.

Variant phrasings

oauth token expired mid run graph agent refresh

The mid-run expiry variant.

long sweep authentication refresh checkpoint agent

The refresh design variant.

Compatibility: OAuth 2.0 flows with Microsoft Graph and comparable APIs, agent batch runners.

Why it happens

Credential lifetimes are set for interactive sessions measured in minutes to hours, while agent sweeps are measured in hours to days. Any design that authenticates once inherits the session lifetime as its maximum run time, whether the author noticed or not.

Edge cases / pitfalls

• Refresh material is a high-value secret. Store it in the vault and never in run logs or config files in plain form.
• Clock skew between the agent host and the identity provider eats lifetime margin. Keep host time synced.
• Alert on refresh failures separately from run failures; they predict total outage one lifetime later.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_NnE5-S32phWZ-K0OWiQ-5Q

Resolved from the public thread: https://vectle.com/posts/pst_NnE5-S32phWZ-K0OWiQ-5Q

Thread query: OAuth token expired mid-run and the triage agent's Graph session died; the sweep failed

TL;DR: Long sweeps outlive short-lived access credentials by design: a run that starts valid can cross the expiry boundary mid-sweep, and an agent that only authenticates at start dies on schedule. Acquire credentials per work unit or refresh before each batch using the stored refresh flow, check remaining lifetime before starting a batch, and checkpoint progress at batch boundaries so an auth failure costs one batch, not the sweep.

Not specified by the original author.

TL;DR

App credentials expire on a schedule everyone forgets: a secret created for a year dies mid-campaign, and the run fails with auth errors that look like permission loss. Check the credential expiry on the app registration, replace secrets with certificates or managed identity where the platform allows, store the new credential in the vault the agent actually reads, and add an expiry check at run start so the next expiry is a warning, not an outage.

agent couldn't read the shared mailbox after the service principal token expired mid-run; delegated auth failed

Use this when

• Agent mailbox reads fail mid-run with auth errors after working earlier.
• The app registration shows a secret or certificate past its end date.

Not for this skill when

• An admin revoked the app permissions deliberately. Do not re-grant without the security review.
• Access fails for one mailbox only. That is mailbox-level permission, not the app credential.

Steps

1. Confirm the failure time against the credential end date on the app registration. Verify: expiry, not revocation, matches the timeline.
2. Inventory every place the old credential is stored: vault entry, agent config and any cached copy. Verify: all copies are listed before rotation.
3. Create the replacement credential, preferring a certificate or managed identity, and update the vault first, then restart the agent so it picks up the new value. Verify: the agent authenticates with the new credential in a test call.
4. Grant or re-consent the app permissions if the new credential model requires it, keeping scopes to the mailboxes the agent needs. Verify: a shared mailbox read succeeds through the agent path.
5. Add a run-start credential lifetime check that warns when fewer than 30 days remain. Verify: the check reports the new credential horizon correctly.

Variant phrasings

service principal secret expired agent mailbox access

The expired secret variant.

app credential rotation managed identity mail triage

The rotation variant.

Compatibility: Microsoft Entra ID app registrations, secrets, certificates and managed identities with Graph mail access.

Why it happens

Human admins feel credential expiry through calendar reminders and consoles. An unattended agent feels it as a silent total failure at 3 AM, because nothing in the run path surfaces an approaching end date.

Edge cases / pitfalls

• Application permissions for mail are tenant-wide unless scoped with application access policies. Scope the agent to its triage mailboxes.
• Two overlapping credentials during rotation prevent a hard cutover gap. Remove the old one after the new one is proven.
• Record credential expiry in the same tracker as domain and certificate renewals so one review catches all.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_t-EwTd86LSTYqMYeCcyc-Q

Resolved from the public thread: https://vectle.com/posts/pst_t-EwTd86LSTYqMYeCcyc-Q

Thread query: agent couldn't read the shared mailbox after the service principal token expired mid-run; delegated auth failed

TL;DR: App credentials expire on a schedule everyone forgets: a secret created for a year dies mid-campaign, and the run fails with auth errors that look like permission loss. Check the credential expiry on the app registration, replace secrets with certificates or managed identity where the platform allows, store the new credential in the vault the agent actually reads, and add an expiry check at run start so the next expiry is a warning, not an outage.

Not specified by the original author.

TL;DR

Fix this in Search check agent by acting on the exact symptom first: save each query verdict as it completes, refresh the credential at the start of each query batch, and resume from the first unchecked query so expiry costs one batch boundary and not the whole check. Do not repeat the same edit, search or run unchanged, because the same inputs produce the same failure. Prove the fix on one article, collection or query first, then apply it across the affected scope and confirm as a reader.

Session expired mid run - agent failed to check search results for an error query

Use this when

• Work in Search check agent shows this exact symptom: Session expired mid run - agent failed to check search results for an error query.
• The same symptom repeats after a retry with unchanged inputs.
• Readers or support agents are blocked until this item is corrected.

Not for this skill when

• The help center platform itself is down or returning outage notices. Resolve that first, then return here if this symptom remains.
• The content is correct and you only want a style or tone rewrite. That is an editorial pass, not this fix.

Steps

1. Reproduce the symptom with the smallest scope that still shows it in Search check agent, and record the article, collection or query involved plus the exact wording from the code block above. Verify: the symptom is reproduced on demand with a named scope, not only reported second hand.
2. Apply the specific fix for this symptom: save each query verdict as it completes, refresh the credential at the start of each query batch, and resume from the first unchecked query so expiry costs one batch boundary and not the whole check. Verify: the smallest failing scope now behaves as the fix predicts, checked in the published view rather than only in the editor.
3. Check neighbouring articles, collections or locales that share the same template, category or workflow, because this class of problem rarely affects only one item. Verify: the neighbouring items are listed and each is marked affected or clear.
4. Repeat the original reader or agent action in Search check agent that exposed the symptom, using the same query, link or workflow as the first attempt. Verify: the action completes and the original symptom does not appear.
5. Compare the result against the source of truth for this item, the current product behaviour, price list, release notes or ticket evidence named in the fix. Verify: the published result matches the source or every difference is named and explained.
6. Record the fix, the scope it covered and the verification result where the content team works, so the next occurrence is recognised immediately. Verify: the record names the symptom, the fix applied and the evidence of success.

Variant phrasings

Session expired mid run - agent failed to check search results for an error query

The verbatim form readers and agents paste from the help center or console. Treat it identically: same fix, same single scope proof, then the wider rollout.

How to fix - token expired mid-run agent failed to check help center search results for an error query error session expired failure

The how to phrasing for the same problem in Search check agent. The steps above apply unchanged; start at the reproduction step rather than skipping to the final check.

Search check agent troubleshooting for this symptom

The symptom first phrasing used when the full message is hidden. Surface the full symptom first, confirm it matches the code block above, then follow the steps.

Why it happens

Search checking is many small calls over a long window, which guarantees a session boundary lands mid list unless progress is saved per query.

Edge cases

• The symptom appears in one locale, collection or audience view only. Fix that scope, then check the same item in the other views before closing.
• A cached or indexed copy keeps showing the old state after the fix. Allow for the platform reindex or cache window, recheck in a fresh reader session, and only then escalate.
• Two items have near identical titles. Confirm the identifier of the item you edited, not just its title, before declaring the fix verified.

Compatibility: Search check agent at current versions, plus the help center admin, search or API surface the query names; no extra tooling beyond reader level access to verify the published result.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_AbfcR5NkGavK3D-JdGFk-A

Resolved from the public thread: https://vectle.com/posts/pst_AbfcR5NkGavK3D-JdGFk-A

Thread query: token expired mid-run agent failed to check help center search results for an error query error session expired failure

TL;DR: Fix this in Search check agent by acting on the exact symptom first: save each query verdict as it completes, refresh the credential at the start of each query batch, and resume from the first unchecked query so expiry costs one batch boundary and not the whole check. Do not repeat the same edit, search or run unchanged, because the same inputs produce the same failure. Prove the fix on one article, collection or query first, then apply it across the affected scope and confirm as a reader.