Proportional shipping costs shows negative values when there are promotion that split items and free shipping applied
ID: 909925
Backlog
Published on 9/28/2023
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Last update on 9/28/2023
Summary
When using promotions that split items, such as the "More for Less" type, proportional shipping costs may display negative values.
This issue is visible when the "More for Less" discount is applied by the seller, and a free shipping promotion is applied by the marketplace, resulting in a discount being given. This behavior causes an infinite loop when attempting to complete a purchase.
Simulation
There may be different combinations causing the issue since the weight is used to calculate the proportional shipping costs, making it hard to reproduce.
Workaround
Configure the free shipping promotion to be applied by the seller.