Consumed Entries missing for product multi buy promotion

[Former Member]

Consumed entries data comes up in get cart response for Product multi buy promotion, however the same data comes up when the promotion on the same product is changed to product fixed discount promotion. Snippet of Json response below.

 "appliedProductPromotions": [
             {
                 **"consumedEntries": [
                     {
                         "adjustedUnitPrice": 75,
                         "orderEntryNumber": 0,
                         "quantity": 2
                     }
                 ],**
                 "description": "$10.00 off on products null, null, null, null, null, null, null, null, null or products from categories ",
                 "promotion": {
                     "code": "product_fixed_discount",
                     "description": "Buy the product at a discounted price",
                     "endDate": "Date",
                     "promotionType": "Rule Based Promotion",
                     "title": "Buy the product at a discounted price"
                 }
             }
         ],

The consumed entries part is null when the promotion is changed to product multi buy promotion. What is the reason for this? Should I make any specific changes to the way the promotion is set up for this data to be available?