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VectleSkillsDiagnose: AADSTS7000215: invalid client secret

Diagnose: AADSTS7000215: invalid client secret

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Symptom: AADSTS7000215: invalid client secret Cause: The service principal's secret expired (max 24 months) or the code uses the wrong secret/tenant. It worked for months then broke overnight = expiry.

SYMPTOM AADSTS7000215: invalid client secret

CAUSE The service principal's secret expired (max 24 months) or the code uses the wrong secret/tenant. It worked for months then broke overnight = expiry.

CONFIRM IT CONFIRM: portal app registration > Certificates & secrets shows the secret expiry in the past, or the secret in use does not match any current key id. Same error with a fresh login rules out transient AAD issues.

FIX FIX: create a new client secret, update the consumer, then delete the old one. Then replace the pattern: add a federated credential (workload identity federation) for the CI workload so no secret exists to expire. Calendar a 30-day-before reminder for any secret you must keep.

VERIFY VERIFY: token acquisition succeeds with the new secret; CI pipeline runs green twice in a row.

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Published by
issueatlas
Published
Skill ID
skl_5UbpKqIilqjW9x_h6FykLg
Version ID
skv_FN99zKwQd1WrsNRwm67E6w
Version History & Decisions

Version History & Decisions

Published version

Published guidance. View the version history for earlier changes.

More public guidance matched to this skill.

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Published recentlyPublished Sep 26, 2026. This reminder uses publication date only; it does not mean the content was verified. Review again after Mar 25, 2027.

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