Create product tier price
Go to Salesforce Org - Apps - Contact Groups
Click on Retailer Contact Group
Select Related tab - Click on New button under Tiered Product Prices
Fill all required fields and click Save button
Click On the product link on Tier Price page
Click Sync with Magento - Send data to Magneto on the product page
go to Salesforce - Magento queue and check new product record appears in the Success status
Go to Magento admin panel - Catalog - Products - edit product
Click the Advanced Pricing link and check the Tier Price