Create upsell product
documentedCreate upsell product.
POST /3dCartWebAPI/v1/ProductUpsellingProductsno implementation yet0 runsInput
product_id*
Base Product ID (catalog ID)
12345
upsell_product_id*
Upsell Product ID (catalog ID)
67890
position
Position / Sort Order
1
active
Active (true/false)
true
Calls Shift4Shop as you (your API key is your account); keychains.dev holds the credentials.