While trying to upload a certificate to a communication user in application Maintain Communication Users, you are getting the following error message:
An exception was raised
In http trace, a POST request with the following request URI got 500 Internal Service Error:
SAP S/4HANA Cloud
The certificate you are trying to upload is not a X.509 client certificate.
Only X.509 certificate is supported for creating a communication user. Please upload a X.509 client certificate.
X509, pkcs#12, pfx, Create Communication User , KBA , BC-SRV-APS-IAM , Identity and Access Management , Problem