Configuring Named CredentialsYou have the certificate created by following the procedure mentioned in Creating a Certificate.In Named Credentials settings tab, in the row entry named SPOMIntegrationNC, you need to upload the signed certificate.Navigate to Setup > Named CredentialsA row entry named SPOMIntegrationNC is present.In the "SPOMIntegrationNC" Named Credential row entry, click down arrow next to Action, and click Edit.In the Edit SPOMIntegrationNC panel,enter the following information.URL: Enter the base URL of SPOM API endpoints.Enable for Callouts: Enable the feature.Extrenal Credential: SPOMIntegration is selected.Client Certificate: Select the signed certificateGenerate Authorization Header: Select the checkbox.Allowed Namespaces for Callouts: Enter the integration managed package name, which is 'cnga_spom'.Click Save.Enable SPOM settings in Config System Properties.