Each task gets its own unique offset stored in a Numbers column.
- Create Numbers column called "Offset"
- Each task has different value (Design: 3, QA: 14, Launch: 21)
- Due date = Parent date + that task's offset
- Different tasks need different timing (Design +3 days, QA +14 days)
- Project templates with varied timelines
- You want to change offsets without editing automation
- Using negative numbers for dates BEFORE parent (Event planning: -90 days)
- All tasks get same offset (use Recipe 2 instead)
Add a Numbers column to your board to store offset values.
- Click "+" next to columns → "Numbers"
- Name it "Offset" or "Days After Start"
For each task, enter the offset in the Numbers column:
Go to Automate → Search "subitem date number column"
Select recipe:
When subitem is created, set its due date to match its parent item
due date + offset by this number column of days/weeks/months
Configure fields:
"Project Start" or "Launch Date"
Create new task with Offset = 5
Check if Due Date = Project Start + 5 days
Try with negative offset (-7) to test dates BEFORE parent
- Check automation is active (not paused)
- Verify parent date column name matches automation
- Ensure each task has offset value in Numbers column
- Check offset values are correct (5 not 50)
- Verify all tasks have offset values (not empty)
- Ensure offset column is Numbers type (not Text)
See full article with additional examples and video walkthroughs: