diff --git a/IRaCIS.Core.Infra.EFCore/Common/AuditingData.cs b/IRaCIS.Core.Infra.EFCore/Common/AuditingData.cs
index cc0f9f44f..be0dbccb4 100644
--- a/IRaCIS.Core.Infra.EFCore/Common/AuditingData.cs
+++ b/IRaCIS.Core.Infra.EFCore/Common/AuditingData.cs
@@ -2611,6 +2611,10 @@ namespace IRaCIS.Core.Infra.EFCore.Common
                 if (entity.ReadingScope == ReadingScopeEnum.Site)
                 {
                     var siteIds = entity.ReadingPeriodSites.Select(t => t.TrialSiteId).ToList();
+                    if(siteIds == null || siteIds.Count == 0)
+                    {
+                        siteIds= await _dbContext.ReadingPeriodSite.Where(c => c.ReadingPeriodSetId== entity.Id).Select(t => t.TrialSiteId).ToListAsync();
+                    }
                     var nameList = _dbContext.TrialSite.Where(c => c.TrialId == entity.TrialId && siteIds.Contains(c.Id)).Select(t => t.TrialSiteCode).ToList();
 
                     siteCodes = String.Join(',', nameList);
diff --git a/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs b/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
index 9b5873c25..4db2f31eb 100644
--- a/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
+++ b/IRaCIS.Core.Infra.EFCore/Context/IRaCISDBContext.cs
@@ -461,6 +461,8 @@ public class IRaCISDBContext : DbContext
     public virtual DbSet<TrialSiteUserRole> UserTrialSite { get; set; }
     public virtual DbSet<TrialSite> TrialSite { get; set; }
 
+    public virtual DbSet<ReadingPeriodSite> ReadingPeriodSite { get; set; }
+
     public virtual DbSet<Site> Site { get; set; }
 
     public virtual DbSet<UserRole> User { get; set; }