Get error 400 with azure ad

Hi,
I just setup an developer account with Okta and now try to setup an SAML from Azure AD to Okta.
I did follow all the steps in this doc:
https://help.okta.com/en/prod/Content/Topics/Provisioning/azure/azure-integrate-main.htm

but when run a test get the error 400 GENERAL_NONSUCCESS
any suggestion?

Thanks

Looks like a similar question has been asked before:

thanks for your reply,
I already saw those links and made sure everything configured and mapped correctly, I also ran the SAML tracker and it looks like the error is at the url that we got from Okta to setup the azure SAML:
https://dev-2XXXXX6.okta.com/login/error/redirect?stateToken=02_RdO8VUXXXXXXXXXXjOvQgkDs
I should be able to open this uri but get the error 400

Shahin

Hi Shahin, would you mind opening a support ticket for this issue? We may need to take a look at your Okta system logs to identify what the underlying issue could be.

hi @okra-okta thak you for reply,
can I open a support ticket with Developer account?