Via GTM in customHTML tag I am using this script to send a custom event to Piwik PRO:
<script>
_paq.push(["trackEvent", "Document View", "{{DLV documentType}}", "{{DLV documentTitle}}"]);
</script>
Whenever the value of the variable “DLV documentType” is empty, the event does not show up in “Tracker debugger”. But as soon as the variable has a value, the event shows up correctly in “Tracker debugger”.
Does Piwik PRO reject a custom event, if event action or event name is set in the javascript with an empty value?