Security

Using relaystat with SAML

aamer86
Path Finder

Hi all

I have a question about using relaystate with SAML when using Azure Ad B2C as the Idp
we successfully managed to integrate Splunk as SP with AD B2C as Idp using SAML and Custom policies
Now we want to redirect the users after successfull authentication to another url
the only way forward I could find was via the Relaystate parameter
below are all the combinations I tried for the Single Sign On (SSO) URL:

https://<tenant-id>.b2clogin.com/<tenant-id>.onmicrosoft.com/B2C_1A_signup_signin/samlp/sso/login?SAML_Request=<base64_SAML_Auth_Request>&RelayState=https%3A%2F%2FredirectWebsite.com
https://<tenant-id>.b2clogin.com/<tenant-id>.onmicrosoft.com/B2C_1A_signup_signin/samlp/sso/login?RelayState=https%3A%2F%2FredirectWebsite.com
https://<tenant-id>.b2clogin.com/<tenant-id>.onmicrosoft.com/B2C_1A_signup_signin/samlp/sso/login?RelayState=https://redirectWebsite.com

I keep getting the error
error while parsing relaystate. failed to decode relaystate.

any advise on how to embed the relaystate in the SSO

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