Change config_id settings possible?

michacassola · November 19, 2022, 11:08pm

Is it possible to change the 24h period on the config_id creation and other values?

heurteph-ei · November 21, 2022, 3:17pm

Hi @michacassola
I don’t think so… There was some ticket about this subject on GitHub:

github.com/matomo-org/matomo

Add setting to customize the time-limited seed of config_id hash

opened 02:19PM - 26 Oct 22 UTC

closed 09:17PM - 27 Oct 22 UTC

sandin78

Enhancement

## Summary When user_id or cookies are not available Matomo falls back on using… config_id to identify, as far as it can be done, unique browsers. When reports are archived, the parameter window_look_back_for_visitor limits how much of the history is searched to determine if the visitor is returning or new, but this setting can be modified to longer time periods. However, the config_id is not persistent over long time. From https://matomo.org/faq/general/how-is-the-visitor-config_id-processed/ `the config_id is only valid for 24 hours maximum and is then rotated, meaning the same visitor will have a different config_id each day.` If the time period of the rotation could be set in config, or even turned off, the unique visitors would not be limited to daily reports. This would be specially helpful for tracking returning visitors coming via iframes etc, or where there are technical reasons why cookies are unavailable.

michacassola · November 21, 2022, 5:00pm

Thank you very much!