Log on to the Fiori front-end server.

Start the Trust Manager (transaction STRUST).

In the menu tree on the left, double-click the SSL Server Standard folder.

Under Certificate, choose the GUI icon with the quick info Import Certificate.

In the dialog box, choose the SMP technical user certificate.

The details of the selected certificate are displayed.

Verify that you have chosen the correct certificate, and then choose Add to Certificate List.