We can't log you in because of an issue with single sign-on. Contact your Salesforce admin for help.

After SSO login with OTP getting the error -

We can't log you in because of an issue with single sign-on. Contact your Salesforce admin for help.


Resolution-

Just click on the sandbox URL again like click on https://xxx--xxx.sandbox.my.salesforce.com/home/home.jsp?source=lex then it will be inside your org.

where xxx-xxx is your domain


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