action message - cannot use Simple macros as used in building trigger expressions.

[lulu]

Hello,

I need to write in message the time of the previously received item (for example, if there is no data from the host I want to write when was the last received data).
I tried to do the following based on the guide

Last Time: {{HOST.HOST}:{ITEM.KEY}.time(0)}
Previous Time: {{HOST.HOST}:{ITEM.KEY}.time(1)}
Time 15: {{HOST.HOST}:{ITEM.KEY}.time(15)}

But the 3 lines give the same result. Am I doing something wrong?

thank you