When customer tries to call >db.enableFreeMonitoring() the following error is returned:

>2019-03-28T19:59:54.843+0900 E QUERY [js] Error: command failed: {
"operationTime" : Timestamp(1553770792, 1),
"ok" : 0,
"errmsg" : "no such command: 'setFreeMonitoring'",
"code" : 59,
"codeName" : "CommandNotFound",

Customer is using community version of Mongodb version 4.0.6 and downloaded binaries from  https://www.mongodb.org/dl/linux/x86_64?_ga=2.57114094.591830261.1554085034-1342414966.1554085034

linux/mongodb-linux-x86_64-4.0.6.tgz 2019-02-05 05:32:55 73265692

I have tested this version from 2019-02-05 and also the latest and have managed to reproduce the problem.  The problem does not exist on the community version which I have installed on my macOS.

It appears that setFreeMonitoring is missing from this build and the behaviour is the same as for Enterprise edition.