I am using PHP SDK to connect to ZOHO. Go insert leads for the company profile. I followed up procedure as in "
https://www.zoho.com/crm/help/developer/server-side-sdks/php.html". I get grant token, access token and refresh token too. But Unable to get any authtoken. It's giving null. With this "
$oAuthTokens = $oAuthClient->generateAccessTokenFromRefreshToken($refreshToken,$userIdentifier);".