Hi @marcos-muller,

After discussing this further with my colleagues, I may have given you misguided information.

SSO will enable seamless login in between applications, but if you are working with aud claims you will want to access the JWT populate lambda functionality and add the corresponding API id to the aud claim.

More info can be found here

https://fusionauth.io/docs/v1/tech/lambdas/jwt-populate/ https://fusionauth.io/docs/v1/tech/lambdas/

I hope this helps!

Thanks,
Josh