All successful configuration changes are recorded to the file logs/config-audit.log.

$ tail -n 8 PingAuthorize/logs/config-audit.log
# [23/Feb/2019:23:16:24.667 -0600] conn=4 op=12 dn='cn=Directory Manager,cn=Root DNs,cn=config' authtype=[Simple] from=127.0.0.1 to=127.0.0.1
# Undo command: dsconfig delete-external-server --server-name "PingAuthorize PAP"
dsconfig create-external-server --server-name "PingAuthorize PAP" --type policy --set base-url:http://localhost:4200 --set "branch:Default Policies"

# [23/Feb/2019:23:16:24.946 -0600] conn=5 op=22 dn='cn=Directory Manager,cn=Root DNs,cn=config' authtype=[Simple] from=127.0.0.1 to=127.0.0.1
# This change was made to mirrored configuration data, which is automatically kept in sync across all servers.
# Undo command: dsconfig set-policy-decision-service-prop --set "policy-server:PingAuthorize (Gateway Policy Example)"
dsconfig set-policy-decision-service-prop --set "policy-server:PingAuthorize PAP"