# \#m2m-tokens **URL:** https://community.auth0.com/tag/m2m-tokens/1542.md [Latest](https://community.auth0.com/latest.md) · [Categories](https://community.auth0.com/categories.md) · [Tags](https://community.auth0.com/tags.md) --- ## [Expiration DateTime for Machine to Machine Applications (Client Credentials flow)](https://community.auth0.com/t/expiration-datetime-for-machine-to-machine-applications-client-credentials-flow/198664)
**Author:** [@aburck](https://community.auth0.com/u/aburck)\ **Replies:** 1\ **Last updated:** [April 30, 2026, 6:29pm UTC](https://community.auth0.com/t/expiration-datetime-for-machine-to-machine-applications-client-credentials-flow/198664 "2026-04-30T18:29:40Z")
Feature: Machine to Machine Application Expiration Use-case: We build and sell APIs. To grant customers access to our APIs, we create Machine to Machine (M2M) Applications for each customer and provide them with their C… --- ## [Unable to create custom claim with special character in the claim name](https://community.auth0.com/t/unable-to-create-custom-claim-with-special-character-in-the-claim-name/109670)
**Author:** [@venkatasandeep.kolis](https://community.auth0.com/u/venkatasandeep.kolis)\ **Replies:** 2\ **Last updated:** [June 21, 2023, 6:39pm UTC](https://community.auth0.com/t/unable-to-create-custom-claim-with-special-character-in-the-claim-name/109670 "2023-06-21T18:39:16Z")
I am trying to create an access token with a custom claim with a special character in the claim name(ex: user\_email) but I see the generated token is not taking up the claim. but I was successful with a special characte… --- ## [Keeping M2M tokens to re-use in action](https://community.auth0.com/t/keeping-m2m-tokens-to-re-use-in-action/87068)
**Author:** [@christian.weissmann](https://community.auth0.com/u/christian.weissmann)\ **Replies:** 1\ **Last updated:** [July 15, 2022, 11:14pm UTC](https://community.auth0.com/t/keeping-m2m-tokens-to-re-use-in-action/87068 "2022-07-15T23:14:03Z")
On the login actions with the first login I need to hit an API endpoint behind my auth wall. I would like to use an M2M token to get to the endpoint. However, as these tokens are limited, I don’t want to re-generate one … --- ## [M2m Token - 'Authenticated Call'](https://community.auth0.com/t/m2m-token-authenticated-call/82365)
**Author:** [@bryan.winter](https://community.auth0.com/u/bryan.winter)\ **Replies:** 3\ **Last updated:** [April 27, 2022, 12:11am UTC](https://community.auth0.com/t/m2m-token-authenticated-call/82365 "2022-04-27T00:11:43Z")
Hello! So I’m representing IDT. We are looking to move to a professional plan shortly as our application is getting ready to start scaling. However we hit the Quota limit on ‘Authenticated Calls’ according to our plan … --- ## [Using Auth0 with Automated Integration Testing](https://community.auth0.com/t/using-auth0-with-automated-integration-testing/61406)
**Author:** [@paul.stanton](https://community.auth0.com/u/paul.stanton)\ **Replies:** 2\ **Last updated:** [February 16, 2022, 2:25pm UTC](https://community.auth0.com/t/using-auth0-with-automated-integration-testing/61406 "2022-02-16T14:25:59Z")
Hello I have a question regarding writing Automated API tests. Right now we can get a m2m token to hit our services which is easy enough. We grab that with the client credentials grant. The token comes back with all o… --- ## [M2M + API: empty permissions](https://community.auth0.com/t/m2m-api-empty-permissions/72700)
**Author:** [@juan.garbora](https://community.auth0.com/u/juan.garbora)\ **Replies:** 5\ **Last updated:** [November 8, 2021, 5:41pm UTC](https://community.auth0.com/t/m2m-api-empty-permissions/72700 "2021-11-08T17:41:27Z")
Hi there . I have one API with one permission, with “Enable RBAC” and “Add permissions in the Access token” enabled. Then I have one application Machine to Machine. The application is Authorized in the API. When I ge… --- ## [M2M token quota exceeded on free plan](https://community.auth0.com/t/m2m-token-quota-exceeded-on-free-plan/63497)
**Author:** [@vvnihsirv](https://community.auth0.com/u/vvnihsirv)\ **Replies:** 1\ **Last updated:** [May 28, 2021, 10:42am UTC](https://community.auth0.com/t/m2m-token-quota-exceeded-on-free-plan/63497 "2021-05-28T10:42:42Z")
So I am currently under the free plan. And I have exceed the free plan by mistake. currently at 6.1k /1k M2M calls. My issue is, my tokens are still generated, but they time out now and then. Is the time out part expect… --- ## [Server error while trying to login on the Auth0 playground](https://community.auth0.com/t/server-error-while-trying-to-login-on-the-auth0-playground/63051)
**Author:** [@contactgorank](https://community.auth0.com/u/contactgorank)\ **Replies:** 1\ **Last updated:** [May 20, 2021, 5:43pm UTC](https://community.auth0.com/t/server-error-while-trying-to-login-on-the-auth0-playground/63051 "2021-05-20T17:43:44Z")
Hi, We are trying to create a bearer token to check how m2m authentication works on auth0. We are getting a ‘server error’ when we try to login on the tight panel of the sandbox. I have attached the screenshot here. … --- ## [Allow specific outside customers access to our API server with m2m machine to machine token](https://community.auth0.com/t/allow-specific-outside-customers-access-to-our-api-server-with-m2m-machine-to-machine-token/61219)
**Author:** [@dak2009](https://community.auth0.com/u/dak2009)\ **Replies:** 3\ **Last updated:** [April 19, 2021, 5:18pm UTC](https://community.auth0.com/t/allow-specific-outside-customers-access-to-our-api-server-with-m2m-machine-to-machine-token/61219 "2021-04-19T17:18:12Z")
We are using machine to machine tokens to secure our internal application connects to our public API servers. Now we want our external customers to be able to use their applications to connect to our public API using ma… --- ## [M2M token storage](https://community.auth0.com/t/m2m-token-storage/47701)
**Author:** [@ryangoy](https://community.auth0.com/u/ryangoy)\ **Replies:** 5\ **Last updated:** [August 13, 2020, 4:50pm UTC](https://community.auth0.com/t/m2m-token-storage/47701 "2020-08-13T16:50:27Z")
I’m using M2M tokens for other backend servers to directly access my API by issuing tokens through the client credentials grant. The backend server will use this token to access my API servers times over the next 12 hou…