3703752 - customer got error XS834 "Message cannot be edited due to error during encryption or signing" in SOST

following error message can be seen in SOST

Message cannot be edited due to error during encryption or signing

Message no. XS843

Diagnosis

The message could not be processed in the SAP system because it could not be encrypted or signed. A missing certificate could be the cause of the problem. The database table was *EMAIL*.

System Response

Technical Information (if available)

Error in SSF function module SSFW_KRN_ENVELOPE

XS843, SSFW_KRN_ENVELOPE, sost, PSE, encryption , KBA , BC-SRV-COM , Communication Services: Mail, Fax, SMS, Telephony , Problem