Hiya,
Can you please provide more details:
any logs (esp with debug enabled) what version of FusionAuth are you running? configuration of the SAML provider, including everything outlined here: https://fusionauth.io/docs/v1/tech/identity-providers/samlv2/ what docs you used on the okta sideI know we have customers who have succeeded in using Okta as the Idp and FusionAuth as the SP, so would love to get to the bottom of this.