diff --git a/ECMJobRunner.Domain/Entities/Profile.cs b/ECMJobRunner.Domain/Entities/CfgProfile.cs
similarity index 86%
rename from ECMJobRunner.Domain/Entities/Profile.cs
rename to ECMJobRunner.Domain/Entities/CfgProfile.cs
index ee8f851..21f8acd 100644
--- a/ECMJobRunner.Domain/Entities/Profile.cs
+++ b/ECMJobRunner.Domain/Entities/CfgProfile.cs
@@ -11,7 +11,7 @@ namespace ECMJobRunner.Domain.Entities
     /// Type: 0 = ADSync; 1 = GraphQL; 2 = SQL-Job; 3 = SQL and REST-Job
     /// </summary>
     [Table("TBJR_CFG_PROFILE", Schema = "dbo")]
-    public class Profile
+    public class CfgProfile
     {
         /// <summary>
         /// Primary Key
@@ -29,7 +29,7 @@ namespace ECMJobRunner.Domain.Entities
         public bool Active { get; set; } = true;
 
         /// <summary>
-        /// Optional profile name
+        /// Profile name (max 150 chars)
         /// </summary>
         [Required]
         [Column("PROFILE_NAME")]
@@ -44,7 +44,7 @@ namespace ECMJobRunner.Domain.Entities
         public byte TypeId { get; set; }
 
         /// <summary>
-        /// Schedule in Cron format
+        /// Schedule in Cron format (max 150 chars)
         /// </summary>
         [Required]
         [Column("SCHEDULE")]
@@ -52,14 +52,14 @@ namespace ECMJobRunner.Domain.Entities
         public string Schedule { get; set; } = "0 30 4 ? * MON-SAT";
 
         /// <summary>
-        /// Optional description
+        /// Optional description (max 500 chars)
         /// </summary>
         [Column("COMMENT")]
         [MaxLength(500)]
         public string? Comment { get; set; }
 
         /// <summary>
-        /// Created by
+        /// Created by (max 50 chars)
         /// </summary>
         [Required]
         [Column("ADDED_WHO")]
@@ -74,7 +74,7 @@ namespace ECMJobRunner.Domain.Entities
         public DateTime AddedWhen { get; set; } = DateTime.Now;
 
         /// <summary>
-        /// Modified by
+        /// Modified by (max 50 chars)
         /// </summary>
         [Column("CHANGED_WHO")]
         [MaxLength(50)]
@@ -91,11 +91,11 @@ namespace ECMJobRunner.Domain.Entities
         /// <summary>
         /// SQL Jobs associated with this profile
         /// </summary>
-        public virtual ICollection<ProfileSqlJob> SqlJobs { get; set; } = new List<ProfileSqlJob>();
+        public virtual IEnumerable<ProfileSqlJob>? SqlJobs { get; set; }
 
         /// <summary>
         /// Profile execution history
         /// </summary>
-        public virtual ICollection<ProfileHistory> ProfileHistories { get; set; } = new List<ProfileHistory>();
+        public virtual IEnumerable<ProfileHistory>? ProfileHistories { get; set; }
     }
 }
diff --git a/ECMJobRunner.Domain/Entities/ProfileHistory.cs b/ECMJobRunner.Domain/Entities/ProfileHistory.cs
index ca8acdc..7dd3304 100644
--- a/ECMJobRunner.Domain/Entities/ProfileHistory.cs
+++ b/ECMJobRunner.Domain/Entities/ProfileHistory.cs
@@ -25,7 +25,7 @@ namespace ECMJobRunner.Domain.Entities
         /// </summary>
         [Required]
         [Column("FK_TBJR_CFG_PROFILE_ID")]
-        [ForeignKey(nameof(Profile))]
+        [ForeignKey(nameof(CfgProfile))]
         public long ProfileId { get; set; }
 
         /// <summary>
@@ -43,7 +43,7 @@ namespace ECMJobRunner.Domain.Entities
         public string ResultText { get; set; } = string.Empty;
 
         /// <summary>
-        /// Created by
+        /// Created by (max 50 chars)
         /// </summary>
         [Required]
         [Column("ADDED_WHO")]
@@ -58,7 +58,7 @@ namespace ECMJobRunner.Domain.Entities
         public DateTime AddedWhen { get; set; } = DateTime.Now;
 
         /// <summary>
-        /// Modified by
+        /// Modified by (max 50 chars)
         /// </summary>
         [Column("CHANGED_WHO")]
         [MaxLength(50)]
@@ -75,6 +75,6 @@ namespace ECMJobRunner.Domain.Entities
         /// <summary>
         /// Associated Profile
         /// </summary>
-        public virtual Profile Profile { get; set; } = null!;
+        public virtual CfgProfile? CfgProfile { get; set; }
     }
 }
diff --git a/ECMJobRunner.Domain/Entities/ProfileSqlJob.cs b/ECMJobRunner.Domain/Entities/ProfileSqlJob.cs
index bc167b4..254ff36 100644
--- a/ECMJobRunner.Domain/Entities/ProfileSqlJob.cs
+++ b/ECMJobRunner.Domain/Entities/ProfileSqlJob.cs
@@ -24,7 +24,7 @@ namespace ECMJobRunner.Domain.Entities
         /// </summary>
         [Required]
         [Column("FK_TBJR_CFG_PROFILE_ID")]
-        [ForeignKey(nameof(Profile))]
+        [ForeignKey(nameof(CfgProfile))]
         public long ProfileId { get; set; }
 
         /// <summary>
@@ -42,7 +42,7 @@ namespace ECMJobRunner.Domain.Entities
         public short Sequence { get; set; } = 0;
 
         /// <summary>
-        /// Optional name
+        /// Optional name (max 150 chars)
         /// </summary>
         [Column("NAME")]
         [MaxLength(150)]
@@ -67,14 +67,14 @@ namespace ECMJobRunner.Domain.Entities
         public string? ApiCommand { get; set; }
 
         /// <summary>
-        /// Optional description
+        /// Optional description (max 500 chars)
         /// </summary>
         [Column("COMMENT")]
         [MaxLength(500)]
         public string? Comment { get; set; }
 
         /// <summary>
-        /// Created by
+        /// Created by (max 50 chars)
         /// </summary>
         [Required]
         [Column("ADDED_WHO")]
@@ -89,7 +89,7 @@ namespace ECMJobRunner.Domain.Entities
         public DateTime AddedWhen { get; set; } = DateTime.Now;
 
         /// <summary>
-        /// Modified by
+        /// Modified by (max 50 chars)
         /// </summary>
         [Column("CHANGED_WHO")]
         [MaxLength(50)]
@@ -106,6 +106,6 @@ namespace ECMJobRunner.Domain.Entities
         /// <summary>
         /// Associated Profile
         /// </summary>
-        public virtual Profile Profile { get; set; } = null!;
+        public virtual CfgProfile? CfgProfile { get; set; }
     }
 }