Administrators may want to update the same child records from one parent record with the same value as is being set for other child records of the same parent.
Examples:
Salesforce documentation on performing updates from a parent to a child record is available here: Use Process Builder to update child records and lookup fields from parent
When trying to update records from the same object, they may trigger the same process again, creating a loop. To prevent this, create an extra field on the object to check whether this process is updating the record.
Note: Process Builder is being retired by Salesforce. For new implementations, consider using Salesforce Flow (Record-Triggered Flow) to achieve equivalent functionality.
This example demonstrates how to set Tasks related to the same Case to Completed, as long as the current user is the owner of the Task and the due date is not in the future.
To update child records with the same value using Process Builder, follow the steps below. A custom checkbox field (CompletedByProcess) is used to prevent recursive updates — ensuring the process does not re-trigger itself when updating the child records.
First, create a checkbox field on the Activity object to track whether the process completed the task.
Select New | Checkbox | Next | Name: CompletedByProcess | Next. Choose which profiles can see the field, select page layout options, then Save.
In Setup, go to Process Builder and select New.
Select IMMEDIATE ACTIONS | Add Action.
Note: Formula Fields cannot be updated by a Process.
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