Single Value Invalid field!

[Dark_Ichigo]

Im having this problem where I have a Macro: FILLNULL | eval POINT = case(Forecast>=SLA ,Forecast) | fields POINT | delta POINT | where POINT>0 | fields _time | head 1 | convert ctime(_time) as MY

I want to use this macro to populate a "Single Value" on my dashboard:

 <module name="ViewstateAdapter">
                                <param name="strictMode">True</param>
                                <module name="HiddenPostProcess">
                                        <param name="search">`SLA_TouchPAD`</param>
                                                <module name="SingleValue">
                                                        <param name="field">MY</param>
                                                 <param name="beforeLabel">TouchPad:</param>
                                                </module>
                                        </module>
                                </module>
                        </module>

But for some reason no matter what I do it displays that the field is Invalid?

I noticed others were having problems with this, but the search that my postprocesses adds to, only uses the exact fields that are extracted from the end of the main search, so what's the problem here?

I have taken a look at the UI_Examples app, not much help there in this case.

[Dark_Ichigo · Accepted solution]

Thanks gkanapathy, but I managed to locate the issue, apparently my search macro had a number of parameters that were not visible to the HiddenPostProcess, so basically all I had to do was move it up a couple of Modules in order for it to be more visible to where those parameters were being generated.

[gkanapathy]

You need to show us your main search. A HiddenPostProcess can only run on fields that are returned from the main search. However, the main search results are optimized down before they are given the the HiddenPostProcess. In particular, if you don't explicitly use a field in the main search, it will be removed from the results, and therefore unavailale to the post process step.

[Ant1D]

Does your macro work if you run it as a normal search? If it does then it might work if you add the following pipe to the end of your search: | count