We would like to save field history beyond 18 months (As per Salesforce only 18 month field level tracking can be saved after that Salesforce delete it), What are the option we have

Hi, I have done all the settings for SSO in Salesforce but while routing to the AD url we are facing below error. Moreover the URL of identity provider (Identity Provider Login URL) also getting changed wile try to login. Is there any additional setting need to configue other than mentioned in SSO Seeting in salesforce. 

We got the following error:
Single Sign-On Error
We can't log you in. Check for an invalid assertion in the SAML Assertion Validator (available in Single Sign-On Settings) or check the login history for failed logins.

We tried recreate another account, but once use this "xxxxx@xxxxxxx.com" in federation ID , we got the Single Sign-On Error
We can't log you in. Check for an invalid assertion in the SAML Assertion Validator (available in Single Sign-On Settings) or check the login history for failed logins.

Any one expericence the same ?

We would like to save field history beyond 18 months (As per Salesforce only 18 month field level tracking can be saved after that Salesforce delete it), What are the option we have

Hi, I have done all the settings for SSO in Salesforce but while routing to the AD url we are facing below error. Moreover the URL of identity provider (Identity Provider Login URL) also getting changed wile try to login. Is there any additional setting need to configue other than mentioned in SSO Seeting in salesforce.