Hi @Hui2 - Your best course of action is to create a case with SAP for Me as we'll need clarification to answer your question. 

Hi @Tina_Martinez - New certificates are not required as part of the SAP Fieldglass hyperscaler migration. You can find reference material on this topic on the SAP Help Portal.

Hi @rmellish - Multiple SSO certificates can be stored at the same time. After confirming the new SSO certificate works successfully, the old one can be removed.