To configure access logs in your log output, you must apply a Message Logging policy to the APIs whose request and response data you want to monitor. If you have previously applied a Message Logging policy to an API instance, you do not need to configure another.
Configuring a Message Logging policy makes access logs visible in both standard output logs and your third-party log services.
To apply a Message Logging policy, see flex-gateway-secure-local.adoc and use the Message Logging Configuration Parameters.
If your access logs are not visible, it is possible that a policy with a higher execution order is causing an error before the Message Logging policy can execute. To reorder policy execution, see policies-reorder.adoc.