I have built an application (Service Provider) and I want to use Salesforce as the SSO IdP using SAML 2.0.

When being redirected to Salesforce to authenticate the user, I get a 'Single Sign On Error: Invalid HTTP method' error and the page URL ends with 'SamlError?idpError=1505' Salesforce connected app config

  • Welcome to SFSE! Please take the tour and read How to Ask. Which endpoint are you redirecting the user to during the authentication? And have you got any logs at all that you could include? From this question you might solve this by using the redirect not post endpoint. Commented Jan 16 at 21:10


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