Why are there entries in sessions table for uid 0? I was alarmed to find sessions being written to the table [sessions] for uid 0. Do I need to worry or is this normal? I could not find answers by searching. I don't know how the sessions table works.
This is Drupal 8.
Do not be alarmed, this is normal. Typically seen in Drupal Commerce sites to keep track of anonymous users also known as user 0.