The price and promotional price API allows you to creates, updates, or deletes promotional prices for multiple SKUs

To set a new promotional price, set the "promotionSettingAction" attribute to "Create". To update an existing one, set the "promotionSettingAction" attribute to "Create" with promoId. To delete a promotional price, set the "promotionSettingAction" attribute to "Delete". To delete all promotions for a SKU, set the "promotionSettingAction" attribute to "Replace All"

Note:

• The effective start date for a given promotion should be within 365 days from the current date and time.
• The end date of a given promotion should be within 180 days from the start date and time. Any promotions beyond 180 days will result in an error