Question 2 Replies 109 Views × Close popover Devarajulu Prathapanenni (DevarajuluP1599) Swedbank AB Swedbank AB SE View Profile Send Message DevarajuluP1599 Member since 2019 1 post Swedbank AB Posted: September 29, 2020 Last activity: October 9, 2020 Posted: 29 Sep 2020 6:35 EDT Last activity: 9 Oct 2020 14:57 EDT Solved Oauth authentication for REST services Hi All, I am implementing REST services with Oauth authentication as described in below link. https://community.pega.com/knowledgebase/articles/data-integration/accessing-pega-api-using-oauth-20 Created OAuth 2.0 Client Registration and Configured with client credentials(Operator ID). Now when I call the auth token service as mentioned in article below exception. ***Edited by Moderator: Pallavi to update platform capability tags*** Pega Platform Case Management Data Integration Security Financial Services Senior System Architect Share × Close popover Facebook Twitter Linkedin Email Copy Link Copied! Posted: 7 months ago Posted: 3 Oct 2020 6:29 EDT × Close popover Kevin Zheng (KevinZheng_GCS) PEGA Director, Software Solutions Engineering Pegasystems Inc. US View Profile Send Message KevinZheng_GCS PEGA replied to DevarajuluP1599 Can you provide more details by attaching pega logs? Accepted Solution Posted: 7 months ago Posted: 9 Oct 2020 14:57 EDT × Close popover Devarajulu Prathapanenni (DevarajuluP1599) Swedbank AB Swedbank AB SE View Profile Send Message DevarajuluP1599 Swedbank AB replied to KevinZheng_GCS Thanks for reply. Issue solved now. I was not saving the OAuth 2.0 Client Registration instance after generating the token.