# \[APP\]\[Pro\] Better Logic Library - Just some better logic, variable and library management **URL:** \ **Category:** Apps\ **Tags:** app, tools, homey-pro, bll\ **Created:** [December 16, 2018, 10:29pm UTC](https://community.homey.app/t/app-pro-better-logic-library-just-some-better-logic-variable-and-library-management/5568 "2018-12-16T22:29:57Z")\ **Posts on this page:** 1\ **Showing post:** 140
**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\ **Post date:** [April 13, 2021, 5:17am UTC](https://community.homey.app/t/app-pro-better-logic-library-just-some-better-logic-variable-and-library-management/5568/140 "2021-04-13T05:17:26Z")
I made some simple flows to test the „One of these variables changed“ function, but it doesn’t work. 3 flows with Boolean variable like this 1 flow with a numeric variable like this Flow with „One of…“ function. Output should be a message. ![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/5/35ee1d11c6f5f54de5634b6654eacace63f9ac75.jpeg) Sorry for the ?, but this is a bug. And for sure, I used the BL variables/tags. So when I start/test one of the first 4 flows (= changing the variables!), nothing happens with the 5th flow. No message is shown. **EDIT** : Roco find out that I did a mistake. I used the tags in the card „One of these variables changed“ instead of typing in the name of the variables. --- _[View the full topic](https://community.homey.app/t/app-pro-better-logic-library-just-some-better-logic-variable-and-library-management/5568)._