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[Olav Poppe <olav.poppe@xxxxxx>]

Hi devs, I’m trying (in 2.25) to make a program indicator counting events where a specific data element has not been filled.

Tested so far: 
- d2:hasValue(‘wmSb9TmevMn.jeK5z6acB3N’)		=> not supported in program indicators, only program rules
- #{wmSb9TmevMn.jeK5z6acB3N}  == ‘’	 		=> no data 
- #{wmSb9TmevMn.jeK5z6acB3N}  != ‘’ 			=> counts the events WITH data, but I’m unable to «invert» this:
	-- !(#{wmSb9TmevMn.jeK5z6acB3N}  != ‘’) 		=> no data, catalina.out shows: ERROR: operator does not exist: ! boolean
	-- (#{wmSb9TmevMn.jeK5z6acB3N}  != '') != true 	=> no data
- #{wmSb9TmevMn.jeK5z6acB3N}  is null 			=> works, but is not a supported format from what I understand.

In general, what is displayed in «Filter description» and what actually works is not consistent - some things are invalid, but work, others are valid but don’t work…

Any advice?

Regards
Olav