Notion Database Automation Tips: Auto-Inherit Parent Page Relation Properties in Sub-Items

Problem Background

Notion databases have a feature called sub-items, which lets you create a tree-like hierarchical structure within a database.

However, when creating sub-items, they cannot automatically inherit the Relation properties from the parent page. You have to manually select them each time, which is quite tedious.

So is there a way to make sub-items automatically inherit the parent page's Relation properties when they are created?

Solution

Method 1: Using Notion Database Automation

Trigger

Select "Page added" as the trigger.

Define Variables

Define a "Variable 1" and assign the sub-item's "parent item's Relation" value to this variable:

Execute Action

1. Edit page properties
2. Select the Relation property
3. Choose "Variable 1"

Final Result

When creating sub-items, they will automatically inherit the parent item's Relation values.

Method 2: Using a Notion Database Button

Method 1 is fully automatic — it runs whenever a sub-item is created. But sometimes you may not want this process to be entirely automated.

In that case, you can create a database page button. The variable settings are the same as Method 1, except the trigger changes to "When button is clicked."

The result looks like this:

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