Deleting records


☠️ The commands listed here cause irrecoverable data loss! Only proceed if you know what you’re doing and you have a backup!


Please note that this is not a full command list, if you’re missing commands, feel free to ask over at the Community.

Removing tickets (and their articles)

# Delete a ticket (specified by database ID)
>> Ticket.find(4).destroy

# Delete all tickets
>> Ticket.destroy_all

# Keep some tickets (specified by database ID); delete the rest
>> tickets_to_keep = [1, 2, 3]
>> Ticket.where.not(id: tickets_to_keep).destroy_all

Removing users


Customers may not be deleted while they have tickets remaining in the system.

As such, the examples below will delete not only the specified customers, but all tickets associated with them, as well. Below commands remove upon executing without any further warnings.


If you’re not sure what to do and need to learn more about what Zammad does upon removing users, please consider using Zammad’s UI options in stead.

Our documentation for the data privacy function will help you a lot!

Removing users is possible in 2 ways: A single user and in bulk.

>> User.find_by(email: '<email address>').destroy

Removing organizations


Removing an organization does not delete associated customers.

Step 1: Select organizations
# by "active" status
>> organizations = Organization.where(active: false)

# by name
>> organizations = Organization.where(name: 'Acme')

# by partial match on notes
>> organizations = Organization.where('note LIKE ?', '%foo%')
Step 2: Preview affected organizations
>> puts { |org| "ORGANIZATION #{}" }.join("\n")
Step 3: Proceed with deletion
>> organizations.each do |org|
     puts %{Preparing deletion of organization "#{}"...}

     org.members.each do |member|
        puts "  Removing #{member.fullname} from organization..."
        member.update!(organization_id: nil)

     puts "  Deleting #{}..."

Removing system records

# Remove all online notifications
>> OnlineNotification.destroy_all

# Remove all entries from the Activity Stream (dashboard)
>> ActivityStream.destroy_all

# Remove entries for all recently viewed objects
# (tickets, users, organizations)
>> RecentView.destroy_all

# Remove all history information from tickets, users and organizations
# (dangerous!)
>> History.destroy_all

Reset Zammad installation


Below commands are incomplete intentionally, error outputs will hint you through! The following operations will cause data loss and are for development / testing only.

Don’t forget to stop Zammad before trying to drop the database!

$ rake db:drop
$ rake db:create
$ rake db:migrate
$ rake db:seed