My problem is that I recently created a new custom dimension in scope "Action" with regex rules to extract some information from my website's URI. Now, I want to apply these rules on my previous data (oldest period).
Is there any way to reprocess old report to include new custom dimension ?
I searched in the documentation and the FAQ and everything seems to lead to this procedure https://matomo.org/faq/how-to/faq_155/ (or this one https://matomo.org/faq/how-to/faq_59/) .
I already tried any of this possibility with any parameters configuration (even this one https://forum.matomo.org/t/invalidate-report-with-custom-dimensions/29394/6) but nothing changed or at least nothing as i expected. Reports for my new custom dimension remain empty for oldest period.
Maybe I'm doing it wrong or I totally misunderstood the meaning of this procedure and it is not possible...
Any hint ?
Invalidating old reports does help if you want to process new data that was added to the log tables. But I assume the new dimensions you added do not have any values in the log tables for old data, right?
Right, but the table visit_action_log contains all the URI I need an I tought Matomo could simply use these logs to create data for my new custom dimension.
If I understand correctly, you tell me that it is not possible to do it ?
Matomo won't change any data for old visits and as far as I know there is currently no possibility to do that automatically.