# Only tracking 13 of 20 conversions

**URL:** <https://community.piwik.pro/t/only-tracking-13-of-20-conversions/1448>\
**Category:** Data collection and tags\
**Created:** [January 2, 2023, 12:25pm UTC](https://community.piwik.pro/t/only-tracking-13-of-20-conversions/1448 "2023-01-02T12:25:18Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![myvetshop](https://avatars.discourse-cdn.com/v4/letter/m/7ba0ec/32.png) [@myvetshop](https://community.piwik.pro/u/myvetshop)\
**Post date:** [January 2, 2023, 12:25pm UTC](https://community.piwik.pro/t/only-tracking-13-of-20-conversions/1448/1 "2023-01-02T12:25:18Z")

</div>

Hi,

I’ve set up Piwik on our website [www.myvetshop.com](http://www.myvetshop.com) and it is tracking, but the last 7 days (where I have let it be), there has been 20 conversions on the website, but Piwik has only tracked 13.

Percentage wise that seems like a huge disrepancy - is there something I’ve set up wrong?

This is my setup in GTM

 ![image](https://europe1.discourse-cdn.com/flex005/uploads/piwikpro/original/2X/e/e135d142d8ae553a5d3f94a6d14434e958c5d8a1.png)

In Piwiki I have turned on the following under Site & Apps \> Privacy:  
Use a Session ID  
Comply with CNIL guidelines  
Don’t collect visitor’s device data  
Mask IP addresses level 1  
Collect from unmasked IP addresses: Country

---

<div class="post-metadata">

**Author:** ![kuba](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/kuba/32/7_2.png) [@kuba](https://community.piwik.pro/u/kuba)\
**Post date:** [January 2, 2023, 12:44pm UTC](https://community.piwik.pro/t/only-tracking-13-of-20-conversions/1448/2 "2023-01-02T12:44:02Z")

</div>

Are you comparing the data with different analytics solution or with your backend? Keep in mind that part of the traffic will always be blocked due to adblockers.

---

<div class="post-metadata">

**Author:** ![myvetshop](https://avatars.discourse-cdn.com/v4/letter/m/7ba0ec/32.png) [@myvetshop](https://community.piwik.pro/u/myvetshop)\
**Post date:** [January 2, 2023, 12:46pm UTC](https://community.piwik.pro/t/only-tracking-13-of-20-conversions/1448/3 "2023-01-02T12:46:00Z")

</div>

It’s my backend that has 20 conversions. GA4 has recorded 16

So yeah I guess ad blockers could be a reason for the disrepacy

---

<div class="post-metadata">

**Author:** ![kuba](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/kuba/32/7_2.png) [@kuba](https://community.piwik.pro/u/kuba)\
**Post date:** [January 2, 2023, 12:49pm UTC](https://community.piwik.pro/t/only-tracking-13-of-20-conversions/1448/4 "2023-01-02T12:49:21Z")

</div>

We need a bigger sample size to tell more. In general, Piwik PRO shouldn’t report less than GA4.

---

<div class="post-metadata">

**Author:** ![myvetshop](https://avatars.discourse-cdn.com/v4/letter/m/7ba0ec/32.png) [@myvetshop](https://community.piwik.pro/u/myvetshop)\
**Post date:** [January 2, 2023, 2:15pm UTC](https://community.piwik.pro/t/only-tracking-13-of-20-conversions/1448/5 "2023-01-02T14:15:56Z")

</div>

Okay, I’ll wait and see how it looks in a week or two to see if it changes 🙂