# \[App\]\[Pro\] PaperTrails Log - Advanced Logging and SysLog

**URL:** <https://community.homey.app/t/app-pro-papertrails-log-advanced-logging-and-syslog/40>\
**Category:** Apps\
**Tags:** app, official, tools\
**Created:** [August 14, 2018, 9:50pm UTC](https://community.homey.app/t/app-pro-papertrails-log-advanced-logging-and-syslog/40 "2018-08-14T21:50:57Z")\
**Posts on this page:** 1\
**Showing post:** 156

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**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [March 6, 2023, 9:26pm UTC](https://community.homey.app/t/app-pro-papertrails-log-advanced-logging-and-syslog/40/156 "2023-03-06T21:26:05Z")

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> [@Matthias76](#):
>
> You can see, that the variable is existing.

Nope, look at

> [@Zufallsgenerator - wie realisieren im Advanced Flow](https://community.homey.app/t/zufallsgenerator-wie-realisieren-im-advanced-flow/77062/17):
>
> Komisch, das klappt bei mir garnicht: Ich sehe zwar, dass die Variable hochgezählt wird, aber sie wird nicht im Log ausgegeben, noch wird sie korrekt ausgewertet: |2023-03-06 09:05.01||Alarmschwelle: NaN| |2023-03-06 09:05.29||Alarmschwelle: NaN| |2023-03-06 09:05.53||Alarmschwelle: NaN| Wird nie ausgelöst:

the 43 is the “Placeholder” is nothing is set.  
 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/c/7/c7fe5b152afb7eb41baab295cdc10d116845f368.png)

And that can happen if you didn’t enter a correct formula…  
As @Peter_Kawa says, Isn’t an Papertrails Issue, Same for a Build in notiofication.  
Just PEBKAC 😉

You can reproduce it this way

 ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/8/9/89a23ea213a0ba08ef1896706c065c37c24e4973.png)  
{{Note the extra Space } }

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