Hi Joseph,

I am going to use below applet for Automatic TFTP backup.

action 1 cli command "enable"

action 2 cli command "configure terminal"

action 3 cli command "file prompt quiet"

action 4 cli command "end"

action 5 cli command "copy running-config tftp://tftp-server/router-confg"

action 6 cli command "configure terminal"

action 7 cli command "no file prompt quiet"

action 8 cli command "end"

Do I need to take any precautions during this applet configuration ?

Nothing from an EEM side.  Just know that with TFTP, the file must typically exist on the server before you can copy it.  You should also note that this capability is built into IOS with the config archive subsystem.

Means there will not be any impact of EEM applet configuration. Like high CPU utilization, memory consumtion.. etc right ?

I haven't seen your event trigger, but assuming this is run infrequently, no, there will not be any more impact than running those commands manually.