The easiest way to send your own changes to your own preferences or your own, new certificates to a partner is via the partner management:
1 Open the partner administration and select the partner to whom you want to send changed contact data or certificates.
2 Right-click on the partner's entry and select Send PDX data to this partner from the context menu.
3 Select the certificates to be included in the PDX. The certificates to be used currently and in the future are displayed. The time of use of the certificates also determines the validity time of the sent PDX. If you select the currently valid certificates, then the sent PDX is valid immediately. Otherwise, the settings in the PDX are also only applicable from the validity time of the certificates from the partner.
4 Click Finish to initiate the PDX dispatch. If the dispatch is successful and the receipt is positively confirmed by the partner, the newly transmitted settings and certificates apply to all connections from the validity time of the PDX.