In our matomo 4.15 database, we have visitors for which first visit does not exist.
The following query yields results :
Does anybody have the same behaviour or is it a problem with confiig/install of our instance ?
This is preventing us from easily identifying the “first click” of visitors.
Do you still have all raw data from the beginning of the tracking? Maybe some raw data have been deleted:
Hi, yes we started using matomo not so long ago, we still have all data since begining
Do you track the user ID?
No we don’t, we don’t need them for our analysis and think it is better for privacy
I am sorry, the only reason I see is the deletion of data thanks to the old raw data deletion task.
Maybe @innocraft could see another reason?