In Magento 2 Amazon Connector module, the admin can easily update the price of the synced products automatically. For this, the admin needs to create the Price Rules.

Here, the admin will:

• Product Price Range: select the minimum and maximum price for the price rule.
  Note: No overlapping of price ranges is allowed.
• Operation Type: Select the operation type as fixed or percentage.
• Operation: Select the operation as increase or decrease.
• Price: enter the amount.
• Amazon Store: select the store.
• Status: enable/disable the price rule.

 
If you have any issue, please feel free to add a ticket and let us know your views at https://webkul.uvdesk.com