Subshift

Assigning fatigue rules to positions

Every position in Subshift must have a fatigue rule. The rule is evaluated whenever a worker is considered for a shift that uses that position — if the worker would breach any limit in the rule, they receive a fatigue badge on the shift group page.

Assigning a rule when creating a position

  1. Go to Positions in the sidebar.
  2. Click Add position.
  3. Fill in the position name and optional description.
  4. In the Fatigue rule dropdown, select the rule to apply. Templates appear first (with "(template)" suffix), followed by your custom rules sorted alphabetically.
  5. Click Create position.
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The Add Position form with the Fatigue rule dropdown open, showing template and custom rules.

Note

A fatigue rule is required — you cannot create a position without selecting one. If the rule you need does not exist yet, create it first under Fatigue Rules in the sidebar.

Changing the rule on an existing position

If you need to update which fatigue rule applies to a position — for example, because your regulatory requirements have changed — edit the position and select a different rule from the dropdown.

Warning

Changing the fatigue rule on a position takes effect immediately for all future shifts. It does not re-evaluate existing shifts or shift slots that have already been evaluated.

Using template rules

You can assign a template rule directly to a position. Templates are read-only so they cannot be customised, but they are a good starting point for standard sectors. If you need to adjust a template's limits, clone it first to create an editable copy.

To clone a template:

  1. Go to Fatigue Rules in the sidebar.
  2. Click Clone on the template row.
  3. Edit the cloned rule as needed.
  4. Return to the position and update the rule assignment.

Viewing which positions use a rule

On the Fatigue Rules list, each rule row shows how many positions are currently assigned to it. This count helps you understand the impact of editing or deleting a rule before you make changes.

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