Error when authenticating using OIDC from external federated IDP


We are working on an IDP, and we have a problem integrating with Okta using OIDC:

  • Prod environment: Many major IAM solutions ( OneLogin etc ), and also Okta, work very well
  • Test environment (configured exactly like the prod): Many major IAM solutions ( OneLogin etc ) work well, except Okta

Here is the exception from the Okta portal system log report, could someone help us investigate that more please ?

Thank you, PKIX path building failed: unable to find valid certification path to requested target

Can you open a support case in our Help Center so someone can review your logs?