Validation Rules for Structures and Components

Your ability to create, copy, or change structures is affected by a number of validation rules; predefined and user-configured.

How Structures and Components Are Validated

When you create, copy, or modify a structure, the following validation rules are applied:

• You can't add a component to a structure where the component item is the same as the parent.

• You can't add a component to a structure where the same component, with the same operation sequence and effectivity, already exists on the structure.

• Lifecycle validation rules, when enabled, ensure that only components in the same lifecycle phase or higher lifecycle phase than the parent item can be added. The only exception is made for a deprecated lifecycle phase. Component items in this lifecycle phase can't be added to an effective structure.

• You can't add a component to a structure that's being referenced as a common structure from another organization, where the component doesn't exist in the other organization.

• You can't add components to common structures. Changes should be performed on the referenced structure only.

• For Assemble to Order (ATO), Pick to Order (PTO), and phantom structures where the parent item has Available to Promise (ATP) Components set to No, you receive a warning when you add a component that has either the item attributes Check ATP set to Yes or ATP Components set to Yes. The warning says "Order details for the parent item specify NO for ATP Components", but you can add the component.

• You can't add an optional component to a structure that's neither model nor option class.

• You can't add a component whose planning percentage isn't equal to 100 to a standard structure.

• You can't add a required component whose planning percentage isn't equal to 100 and that has the Forecast Control attribute set to Consume or None to a model or option class structure.

• When adding a component to a structure, Check ATP component attribute is set to No if the component quantity is less than or equal to 0.

• If the Use Placeholder attribute is enabled for the selected option class item, the item isn’t loaded into the configurator model during structure import. A placeholder is created for the selected option class item in the configurator model when:
  • You select the check box for this attribute on the Edit Item Structure page.
  • You select Yes for this attribute on a change order.

  You can replace the placeholder with the actual data during order import (when required).

Note: Routings-based validation aren't supported. The only check made is to ensure that an integer value is entered for the operation sequence.

Here is a guide to the various table values:

• Yes: You can add this component type to this structure type.

• No: You can't add this component type to this structure type.

• *: These components must be optional.

• **: These components are treated as standard subassemblies.

This table presents the validation rules used for adding components to different structure types.

Description	Planning	PTO Model	PTO Option Class	PTO Option (kit)	ATO Model	ATO Option Class	ATO Item	Standard Item
Planning Structure	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
PTO Model Structure	No	Yes	Yes	Yes	Yes	No	Yes*	Yes
ATO Item	No	No	No	No	No	No	Yes**	Yes
ATO Model Structure	No	No	No	No	Yes	Yes	Yes	Yes
ATO Option Class Structure	No	No	No	No	Yes	Yes	Yes	Yes
ATO Item Structure	No	No	No	No	No	No	Yes**	Yes
Standard Item Structure	No	No	No	No	No	No	Yes	Yes