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Requirements for the Subtotal

 

A subtotal is the total amount for the products before taxes and shipping and handling charges are added. The subtotal for a transaction must be greater than zero. If the subtotal is less than or equal to zero, PayPal declines the transaction.

To calculate the subtotal, PayPal does the following:

1Identifies the offers for which the product code is not handling_only, shipping_and_handling, or shipping_only.

2Multiplies quantity * amount for each offer identified in step 1.

3Adds the values that were calculated in step 2.

Example 1Offers That Cause PayPal to Decline a Transaction

offer0=amount:10.00^quantity:1^product_code:Beverages^product_name:Fancy Cola^merchant_product_sku:B4859^tax_amount:10^product_description:Description for Fancy Cola!

offer1=amount:5.00^product_code=shipping_only

offer2=amount:10.00^quantity:1^product_code:coupon^product_name:Discount^merchant_product_sku:D1000^product_description:1000th customer discount