Plugins Directory » Redmine Serial Number Field

Author: Minoru Maeda
Code repository:
Registered on: 2017-06-08 (over 5 years ago)
Current version: 3.0.0
Compatible with: Redmine 4.1.x
User ratings:   (4)

Add a format to be serial number in the specified format as a issue custom field.


  • "Automatic serial number" is available as a format for custom fields for issues.
    • After creating a new custom field, you can not edit the "Regular expression".
    • Every user who can create a issue has automatic number assignment authority.
  • Automatically assign sequential numbers of specified formats on a project basis at issue registration or update.
    • It works not only for single issues but also for bulk operation.
    • Custom field items are displayed when viewing issues. However, it will not be displayed when registering or updating.
  • Basic options for custom fields are also available, such as issue filter criteria and search target.


  • When you change tracker or project of numbered issue
    • If the changed tracker does not have the same custom field, the sequential number assigned will be deleted.
    • If the tracker after change has the same custom field, the sequential numbers numbered will not change (there is a risk of duplication).
  • When you set permissions for custom fields in workflow
    • Setting a custom field for automatic number assignment to read only will not work properly.


3.0.0 (2020-07-22)

Compatible with Redmine 4.1.x.

2.0.0 (2019-03-18)

Compatible with Redmine 4.0.x.

  • Support Redmine 4.0 (@nanego)
  • Support French locale (@nanego)
  • Drop support Redmine version 3.4 lower (@maeda-m) (114 KB) Minoru Maeda, 2019-03-18 09:34

0.9.0 (2017-06-08)

Compatible with Redmine 3.3.x, 3.2.x.

User ratings

  by mo xun almost 2 years ago

  by Jorge Garcia almost 5 years ago

It is a good contribution, and I am using it in my company, but I would like it to be calculated when the request arrives at a certain state. for example, when the issue is in the new state is not shows the serial #, only when it reaches the next etate.

  by Quan VN almost 5 years ago

Fix the copy issue by edit file issue_patch.rb, line 15, change it into
next if assigned_serial_number?(cf) && !copy?

  by qn wang about 5 years ago

A helpful plugin, thank you Maeda.But I found when COPY a issue, the Serial Number is not increased but the same as the oringinal one. would you try to fix it?