diff --git a/SytelineSaAppEfDataModel/Services/IMaterialTransactionService.cs b/SytelineSaAppEfDataModel/Services/IMaterialTransactionService.cs
index 60774ee..9050da6 100644
--- a/SytelineSaAppEfDataModel/Services/IMaterialTransactionService.cs
+++ b/SytelineSaAppEfDataModel/Services/IMaterialTransactionService.cs
@@ -8,4 +8,5 @@ public interface IMaterialTransactionService
     Task<MaterialTransactionDto?> GetByWzNumber(string wzNumber);
     Task<IEnumerable<MaterialTransactionDto>> GetByWzNumbers(ISet<string> wzNumbers);
     Task<IEnumerable<MaterialTransactionDto>> GetByOrderNumber(string orderNumber);
+    Task<IEnumerable<MaterialTransactionDto>> GetOrderNumbersByWz(ISet<string> wzNumbers);
 }
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diff --git a/SytelineSaAppEfDataModel/Services/MaterialTransactionService.cs b/SytelineSaAppEfDataModel/Services/MaterialTransactionService.cs
index e278475..a2e9fb8 100644
--- a/SytelineSaAppEfDataModel/Services/MaterialTransactionService.cs
+++ b/SytelineSaAppEfDataModel/Services/MaterialTransactionService.cs
@@ -45,4 +45,25 @@ public class MaterialTransactionService(SytelineSaAppDbContext context, IMapper
         return await context.MaterialTransactions.Where(x => x.RefNum == orderNumber).OrderByDescending(x => x.TransDate)
             .Select(x => mapper.Map<MaterialTransactionDto>(x)).ToListAsync();
     }
+    
+    public async Task<IEnumerable<MaterialTransactionDto>> GetOrderNumbersByWz(ISet<string> wzNumbers)
+    {
+        if (!wzNumbers.Any())
+            return [];
+
+        var wzNumbersList = string.Join(",", wzNumbers.Select(w => $"'{w}'"));
+
+        var sql = $@"
+        SELECT z.*
+        FROM ZPL_InternalNum_Matltran z
+        WHERE z.MTGroupNum <> ''
+        AND z.MTGroupNum IN ({wzNumbersList})";
+
+        IList<MaterialTransaction> result = await context.MaterialTransactions
+            .FromSqlRaw(sql)
+            .AsNoTracking()
+            .ToListAsync();
+
+        return result.Select(x => mapper.Map<MaterialTransactionDto>(x));
+    }
 }
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