IDO Deletion Rules

For the deletion of IDOs, you can define zero or more rules. Rules are used identify:

The IDO property or properties that are referenced by another IDO
The referencing IDO
The property or properties on the referencing IDO that correspond to the referenced properties

For each rule, you can specify one of three actions to take when one or more records match the rule definition for deletion:

Restrict: Aborts the deletion and displays a message indicating that the delete operation is not allowed
For example: "Cannot delete record. At least one sales order exists for this customer."

NOTE: For Restrict actions, you must specify translatable application message strings to be substituted in the delete operation.
Remove: Allows the deletion but sets the referencing properties to NULL
Cascade: Allows the deletion but first deletes any referencing records (subcollections)

You can optionally

Specify the translatable message to display to the end user if a delete is prevented
Supply a filter to further restrict the rows to which the delete policy applies