With Release 8.1.3, you can use the Number of days after which system deletes expired certificates field on the Services > Configurations > Settings > SMGR > Trust Management page to set the number of days after which System Manager deletes the data of expired certificates from the System Manager database.

This only applies to the data of expired certificates that are generated by System Manager which act as a CA or sub CA.

By default, System Manager runs ExpiredCertificateRemovalJob once a week at midnight based on the system timezone to check the expired certificates. If the certificate is expired and expiry date is more than the number of configured days, System Manager purges the data of expired certificates.