Updates summary groups for the given cart ID, based on user adjustments.

Mandatory Fields (each summary group):

• Id - required to identify which summary group to update
• LineType - must be: Subtotal, Total, Grand Total, Group Total, or Category Total
• GroupType - must be: Category, Product, or Ad hoc
• AdjustmentAmount - required when AdjustmentType is set
• AdjustmentType - required when AdjustmentAmount is set

Required Fields:

• cartId (route) - required
• summaryGroups (body) - must not be null or empty

Responses

• 200 OK: the summary groups were updated.
• 400 Bad Request: validation failed for the summary groups.
• 500 Internal Server Error: an unexpected error occurred.