hotfix: replace legacy missing economic customer number error message

VERSION

@@ -1 +1 @@
-2.2.96
+2.2.97

app/modules/orders/backend/economic_export.py

@@ -67,7 +67,10 @@ class OrdreEconomicExportService:
         if not customer.get("economic_customer_number"):
             raise HTTPException(
                 status_code=400,
-                detail="Kunden mangler e-conomic kundenummer i Customers modulet",
+                detail=(
+                    f"Kan ikke overfoere ordre til e-conomic: Customer '{customer.get('name')}' "
+                    "mangler e-conomic kundenummer. Lokal ordre er bevaret."
+                ),
             )
 
         selected_lines = [line for line in lines if bool(line.get("selected", True))]