# ${source.login}

**URL:** <https://devforum.okta.com/t/source-login/5615>\
**Category:** Questions\
**Created:** [July 10, 2019, 1:25am UTC](https://devforum.okta.com/t/source-login/5615 "2019-07-10T01:25:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dfloyd](https://avatars.discourse-cdn.com/v4/letter/d/bcef8e/32.png) [@dfloyd](https://devforum.okta.com/u/dfloyd)\
**Post date:** [July 10, 2019, 1:25am UTC](https://devforum.okta.com/t/source-login/5615/1 "2019-07-10T01:25:48Z")

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I am trying to change to use JSON web token and am trying to change my application to use Client\_secret\_jwt. From what I’ve read, I can only change it with Json as seen on the following link.

[https://developer.okta.com/docs/reference/api/apps/#set-swa-user-editable-username-password](https://developer.okta.com/docs/reference/api/apps/#set-swa-user-editable-username-password)

What values are acceptable for ${source.login}?

```auto
"credentials": {
    "scheme": "ADMIN_SETS_CREDENTIALS",
    "userNameTemplate": {
      "template": "${source.login}",
      "type": "BUILT_IN"
    }

```

[https://developer.okta.com/docs/reference/api/apps/#set-swa-administrator-sets-username-and-password](https://developer.okta.com/docs/reference/api/apps/#set-swa-administrator-sets-username-and-password)

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<div class="post-metadata">

**Author:** ![andrea](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/andrea/32/2172_2.png) [@andrea](https://devforum.okta.com/u/andrea)\
**Post date:** [January 17, 2024, 11:44pm UTC](https://devforum.okta.com/t/source-login/5615/2 "2024-01-17T23:44:22Z")

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