2979628 - Error "HTTP ERROR 405 HTTP method POST is not supported by this URL" encounters intermittently in live data connection to BO universe with SAML SSO authentication in SAP Analytics Cloud (SAC)

Below error message happens intermittently in live data connection to BO universe with SAML SSO authentication:

HTTP ERROR 405 HTTP method POST is not supported by this URL
URI: /sap/boc/ina/saml/SSO
STATUS: 405
MESSAGE: HTTP method POST is not supported by this URL
SERVLET: org.eclipse.jetty.servlet.ServletHandler$Default404Servlet...

Sometime SSO error doesn't show but data source selection is greyed,
If clear browser cache or work in incognito mode, it works but some time does not work again.

Upgraded LDC from 3.0 to 3.x issue still exists.

• SAP Analytics Cloud (Enterprise) 2020.14.23
• Live Data Connector to Universe ver 3.0 / 3.1 / 3.2 / or 3.3

Follow the help guide:

https://help.sap.com/viewer/00f68c2e08b941f081002fd3691d86a7/release/en-US/b9f08e2bedec452d933da799b8a95b25.html

This is caused by a incorrect MetaData file for the connection.

If you download then upload a new MetaData file as described in the guide, this issue will be resolved.

• 2569847 - Where can you find SAC user assistance (help) to use, configure, and operate it more effectively?
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• 2487011 - What information do I need to provide when opening an case for SAP Analytics Cloud?
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