Returned when one of the following conditions occurs:
- A Customer reference (for example, `associates[*].customer` or `inheritedAssociates[*].customer`) is expanded on the [My Business Unit](/api/projects/me-business-units) endpoint.
- A [Cart Discount](ctp:api:type:CartDiscount) cannot be modified due to missing permissions for its assigned [Stores](ctp:api:type:Store).
Returned when one of the following conditions occurs: