from django.contrib import admin
from .models import StockState


class StockStateAdmin(admin.ModelAdmin):
    model = StockState
    list_display = [
        'section_id',
        'case_id',
        'product_id',
        'stock_on_hand',
        'daily_consumption',
        'last_modified_date'
    ]
    list_filter = [
        'section_id',
        'case_id',
        'product_id',
        'last_modified_date'
    ]

admin.site.register(StockState, StockStateAdmin)

@@ -351,74 +351,80 @@
    '
-case_id',
+last_modified_date'
 %0A    
+%5D%0A
     
-'product_id',%0A        'last_modified_date'%0A    %5D
+search_fields = %5B%22case_id%22, %22product_id%22%5D%0A
 %0A%0Aad

Use product/case id's in search rather than filter