Currently, our Site Search feature uses Custom Variables in the backend to track site searches and site search categories. We need to rewrite this feature without using Custom Variables (see https://github.com/piwik/piwik/issues/11524) so that we can deprecate Custom Variables in the future.
Since it would likely require new fields in the database, assigning to Piwik 4.
Hi there, I confirmed you that this issue is still active and that it populates custom variables within the database which are in fact not called within the UI, here is a video showing it all https://www.youtube.com/watch?v=2vO3VBOYAHA&feature=youtu.be
@Chardonneaur we've already started working on this as part of Matomo 4 👍