# Unable to create a Signer User

**URL:** <https://community.fireblocks.com/t/unable-to-create-a-signer-user/318>\
**Category:** Developer Discussion\
**Created:** [August 29, 2023, 2:20am UTC](https://community.fireblocks.com/t/unable-to-create-a-signer-user/318 "2023-08-29T02:20:59Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![miyaka](https://avatars.discourse-cdn.com/v4/letter/m/bc79bd/32.png) [@miyaka](https://community.fireblocks.com/u/miyaka)\
**Post date:** [August 29, 2023, 2:20am UTC](https://community.fireblocks.com/t/unable-to-create-a-signer-user/318/1 "2023-08-29T02:20:59Z")

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Hi Fireblocks community,  
Why the delete API user is not allowed in my account? Any reasons for that, I am using a sandbox environment.

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**Author:** ![miyaka](https://avatars.discourse-cdn.com/v4/letter/m/bc79bd/32.png) [@miyaka](https://community.fireblocks.com/u/miyaka)\
**Post date:** [August 29, 2023, 2:21am UTC](https://community.fireblocks.com/t/unable-to-create-a-signer-user/318/2 "2023-08-29T02:21:53Z")

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Im always receiving Fireblocks SDK Error: Unauthorized: Token was not accepted even I just created an API user with Editor mode. My account also not allowed me to create a Signing User. Please help me here.

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**Author:** ![alec](https://sea1.discourse-cdn.com/flex015/user_avatar/community.fireblocks.com/alec/32/112_2.png) [@alec](https://community.fireblocks.com/u/alec)\
**Post date:** [August 31, 2023, 2:45pm UTC](https://community.fireblocks.com/t/unable-to-create-a-signer-user/318/3 "2023-08-31T14:45:40Z")

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Hi @miyaka

On a Sandbox workspace, only Non-signing Admins will be able to delete API users. If your role is Viewer or Editor, you will not be able to perform this action. Furthermore, signing users cannot be created in Sandbox workspaces, because all signing is handled by the Sandbox communal co-signer.

The [“Token was not accepted” message](https://developers.fireblocks.com/docs/common-issues#-message-unauthorized-token-was-not-accepted-code--7) is returned when the JWT that is passed as the `Authorization` field in your request header is not formatted correctly. Please review [this article](https://developers.fireblocks.com/reference/signing-a-request-jwt-structure) and ensure that your JWT is constructed properly.