Not able to use OAuth token on tyk portal Error: Bearer token

Hi, We used OAuth authentication (Client credentials & token) for a API but i am not able to access api on tyk portal. Please find screenshot for your reference. Thanks…

c# - Getting error: unsupported_grant_type when trying to get a JWT by calling an OWIN OAuth secured Web Api via Postman - Stack Overflow

OAUTH2 flow credentials retrieve access_token - Support - Tyk API Management Community Forum

API Setup to Add BYU User Accounts

Azure Datafactory - OAuth2 Access token type not supported - Microsoft Q&A

OAuth with authorization prefix Bearer

OAuth2 verification endpoint error: Cannot access 'res' before initialization - Queries and Resources - Retool Forum

Intro to Postman Part 2: authorizing a request

End-to-End API Monetization with Tyk, Stripe, and Moesif

Introduction to OAuth 2.0 protocol - Orange Developer

OAuth 2.0

OWIN, OAuth - Bearer tokens: Authentication and Authorization for unit tests