Create the app registration that represents the Claude API audience. changedmanage-claude/wif-providers/azure
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109109```
110110
111111<Warning>
112 Managed identity workloads need `max_jwt_lifetime_seconds: 86400`. Azure issues managed identity tokens with up to 24 hours between `iat` and `exp` because it caches each resource's token for that window and offers no way to force an early refresh, and the issuer's 1-hour default rejects those tokens with `invalid_grant`. The Connect workload wizard's Microsoft Entra tile creates the issuer with `max_jwt_lifetime_seconds` set to `7500` and provides no field to change it during creation, so finish the wizard, then open **Settings → Workload identity → Issuers**, edit the issuer, and raise the value to `86400`. You can also update the issuer through the Admin API.
112 Managed identity workloads need `max_jwt_lifetime_seconds: 86400`. Azure issues managed identity tokens with up to 24 hours between `iat` and `exp` because it caches each resource's token for that window and offers no way to force an early refresh, and the issuer's 1-hour default rejects those tokens, so the exchange fails with the opaque `401` `authentication_error` response (message `Authentication failed`). The Connect workload wizard's Microsoft Entra tile creates the issuer with `max_jwt_lifetime_seconds` set to `7500` and provides no field to change it during creation, so finish the wizard, then open **Settings → Workload identity → Issuers**, edit the issuer, and raise the value to `86400`. You can also update the issuer through the Admin API.
113113</Warning>
114114
115115A longer accepted lifetime means a leaked Entra token stays exchangeable for longer. If a token leaks, the lever is disabling the federation rule; a tight `oid` match limits which identities can exchange a token in the first place, as described in [Scope your rule](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#scope-your-rule).
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583583
584584### Verify the setup
585585
586From your Azure resource, run the cURL exchange shown in [Acquire and use the token](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#acquire-and-use-the-token) and confirm that `POST /v1/oauth/token` returns a `200` with an `access_token` beginning with `sk-ant-oat01-` and an `expires_in` value in seconds. On `400 invalid_grant`, decode the Entra token (see [Troubleshoot a failed exchange](https://platform.claude.com/docs/en/manage-claude/wif-reference#troubleshoot-a-failed-exchange) for the command) and check the most common Azure-side causes:
586From your Azure resource, run the cURL exchange shown in [Acquire and use the token](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#acquire-and-use-the-token) and confirm that `POST /v1/oauth/token` returns a `200` with an `access_token` beginning with `sk-ant-oat01-` and an `expires_in` value in seconds. If the exchange fails with the opaque `401` `authentication_error` response (message `Authentication failed`), check the [authentication history page](https://platform.claude.com/settings/workload-identity-federation?tab=history) for the deny reason, then decode the Entra token (see [Troubleshoot a failed exchange](https://platform.claude.com/docs/en/manage-claude/wif-reference#troubleshoot-a-failed-exchange) for the command) and check the most common Azure-side causes:
587587
588588* **Issuer mismatch:** The registered `issuer_url` must match the token's `iss` claim exactly. A v2.0 token carries `https://login.microsoftonline.com/<TENANT_ID>/v2.0`; if the decoded `ver` claim is `1.0`, see [If your tokens are v1.0](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#if-your-tokens-are-v1-0).
589589* **Token lifetime:** Managed identity tokens carry up to 24 hours between `iat` and `exp`. If the issuer still has the wizard's `7500` (or the 1-hour default), raise `max_jwt_lifetime_seconds` to `86400` as described in [Configure Anthropic](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#configure-anthropic).
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726726```
727727
728728<Warning>
729 The Connect workload wizard's Microsoft Entra tile creates the issuer with `max_jwt_lifetime_seconds` set to `7500` (just over 2 hours), which covers the default 60 to 90 minute lifetime of `client_credentials` tokens. A tenant token-lifetime policy or Continuous Access Evaluation (CAE) can extend that lifetime. If your decoded token's `exp` minus `iat` exceeds 7500 seconds, edit the issuer in **Settings → Workload identity → Issuers** and raise `max_jwt_lifetime_seconds` to match, or exchanges fail with `invalid_grant`. If your tenant also runs managed-identity workloads from [Use a managed identity](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#use-a-managed-identity), use that section's `86400` value, which covers both paths.
729 The Connect workload wizard's Microsoft Entra tile creates the issuer with `max_jwt_lifetime_seconds` set to `7500` (just over 2 hours), which covers the default 60 to 90 minute lifetime of `client_credentials` tokens. A tenant token-lifetime policy or Continuous Access Evaluation (CAE) can extend that lifetime. If your decoded token's `exp` minus `iat` exceeds 7500 seconds, edit the issuer in **Settings → Workload identity → Issuers** and raise `max_jwt_lifetime_seconds` to match, or exchanges fail with the opaque `401` `authentication_error` response (message `Authentication failed`). If your tenant also runs managed-identity workloads from [Use a managed identity](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#use-a-managed-identity), use that section's `86400` value, which covers both paths.
730730</Warning>
731731
732732A longer accepted lifetime means a leaked Entra token stays exchangeable for longer. If a token leaks, the lever is disabling the federation rule; a tight `oid` match limits which identities can exchange a token in the first place, as described in [Scope your rule](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#scope-your-rule).
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11721172
11731173### Verify the setup
11741174
1175From inside a labeled pod, run the cURL exchange shown in [Acquire and use the token](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#acquire-and-use-the-token-2) and confirm that `POST /v1/oauth/token` returns a `200` with an `access_token` beginning with `sk-ant-oat01-` and an `expires_in` value in seconds. On `400 invalid_grant`, decode the Entra-issued token from step 1 (see [Troubleshoot a failed exchange](https://platform.claude.com/docs/en/manage-claude/wif-reference#troubleshoot-a-failed-exchange) for the command) and check the most common Azure-side causes:
1175From inside a labeled pod, run the cURL exchange shown in [Acquire and use the token](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#acquire-and-use-the-token-2) and confirm that `POST /v1/oauth/token` returns a `200` with an `access_token` beginning with `sk-ant-oat01-` and an `expires_in` value in seconds. If the exchange fails with the opaque `401` `authentication_error` response (message `Authentication failed`), check the [authentication history page](https://platform.claude.com/settings/workload-identity-federation?tab=history) for the deny reason, then decode the Entra-issued token from step 1 (see [Troubleshoot a failed exchange](https://platform.claude.com/docs/en/manage-claude/wif-reference#troubleshoot-a-failed-exchange) for the command) and check the most common Azure-side causes:
11761176
11771177* **Issuer mismatch:** The registered `issuer_url` must match the token's `iss` claim exactly. A v2.0 token carries `https://login.microsoftonline.com/<TENANT_ID>/v2.0`; if the decoded `ver` claim is `1.0`, see [If your tokens are v1.0](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#if-your-tokens-are-v1-0).
11781178* **Token lifetime:** If a tenant token-lifetime policy or CAE extends the `client_credentials` token past 7500 seconds, raise the issuer's `max_jwt_lifetime_seconds` as described in [Configure Anthropic](https://platform.claude.com/docs/en/manage-claude/wif-providers/azure#configure-anthropic-2).
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