# Why don't filtered unique custom events sum up? **URL:** \ **Category:** Reports and working with data\ **Created:** [August 22, 2022, 9:48am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916 "2022-08-22T09:48:18Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Susanne](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/susanne/32/4406_2.png) [@Susanne](https://community.piwik.pro/u/Susanne)\ **Post date:** [August 22, 2022, 9:48am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/1 "2022-08-22T09:48:19Z")
Hello. I want to report unique custom events according to their name. Thus I created a filter ![image](https://europe1.discourse-cdn.com/flex005/uploads/piwikpro/original/1X/7a618aaaafc5b6bd1165efa77ab8856edf17f6ae.png) but these don’t sum up although I believe they should. When I report their total, only the first number shows up as a Grand Total: ![image](https://europe1.discourse-cdn.com/flex005/uploads/piwikpro/original/1X/91d671d131f7a9ae48760f2aeca312c95a34efbb.png) Thanks, Susanne ---
**Author:** ![Admin](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@Admin](https://community.piwik.pro/u/Admin)\ **Post date:** [August 22, 2022, 3:04pm UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/2 "2022-08-22T15:04:11Z")
Hi. Most likely those 2458 events were generated in the same session as `storm,keinwl`. Would that be possible? ---
**Author:** ![Susanne](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/susanne/32/4406_2.png) [@Susanne](https://community.piwik.pro/u/Susanne)\ **Post date:** [August 23, 2022, 6:49am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/3 "2022-08-23T06:49:27Z")
Hi Kuba. I don’t think so, it should be different users who have strom and stromgas…! So these should be generated in different sessions. Susanne ---
**Author:** ![Admin](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@Admin](https://community.piwik.pro/u/Admin)\ **Post date:** [August 23, 2022, 8:09am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/4 "2022-08-23T08:09:08Z")
Could you create a segment in Piwik PRO UI for the event `stromgas`, apply it and check the session in the session log to see what events were triggered? ---
**Author:** ![Susanne](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/susanne/32/4406_2.png) [@Susanne](https://community.piwik.pro/u/Susanne)\ **Post date:** [August 24, 2022, 6:50am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/5 "2022-08-24T06:50:04Z")
Hi Kuba. I did so - i am just not sure how to check it efficiently. I examined some of the sessions and in these, there was only stromgas selected (i.e. an event with stromgas triggered). Is there a way to examine it more efficiently? I believe that stromgas and strom would always be selected in different sessions as the customer has either/or and not both. Thanks, Susanne ---
**Author:** ![Admin](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@Admin](https://community.piwik.pro/u/Admin)\ **Post date:** [August 24, 2022, 7:57am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/6 "2022-08-24T07:57:04Z")
Even examination of one session tells us that there’s something wrong. Could you recreate a similar report in the Piwik PRO’s UI? Can you also share the instance name, site name and date range here or on priv? ---
**Author:** ![Susanne](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/susanne/32/4406_2.png) [@Susanne](https://community.piwik.pro/u/Susanne)\ **Post date:** [August 24, 2022, 8:51am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/7 "2022-08-24T08:51:10Z")
Hi Kuba. Thanks for looking into it. Yes, I recreated in Piwik Analytics and it DOES sum up here: ![image](https://europe1.discourse-cdn.com/flex005/uploads/piwikpro/original/1X/2179a4f4d8d0c8ec617b267dca4d24ea62ee2d8d.png) Instance is [https://wienenergie.piwik.pro/](https://wienenergie.piwik.pro/) Master property Wien Energie Susanne ---
**Author:** ![Susanne](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/susanne/32/4406_2.png) [@Susanne](https://community.piwik.pro/u/Susanne)\ **Post date:** [August 24, 2022, 8:54am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/8 "2022-08-24T08:54:59Z")
Hi Kuba. Yesterday I installed the new connector to data studio and now it sums up even in data studio. ![image](https://europe1.discourse-cdn.com/flex005/uploads/piwikpro/original/1X/1c4cfb4a8588298398632294528f1c1a106d31ef.png) so i consider this as solved 🙂 Thanks, Susanne ---
**Author:** ![Admin](https://avatars.discourse-cdn.com/v4/letter/a/3ec8ea/32.png) [@Admin](https://community.piwik.pro/u/Admin)\ **Post date:** [August 24, 2022, 9:11am UTC](https://community.piwik.pro/t/why-dont-filtered-unique-custom-events-sum-up/916/9 "2022-08-24T09:11:48Z")
Great! 🙂 @Piotrek 👏