diff --git a/server/AyaNova/models/PM.cs b/server/AyaNova/models/PM.cs
index 71ef355b..6b3a5d17 100644
--- a/server/AyaNova/models/PM.cs
+++ b/server/AyaNova/models/PM.cs
@@ -15,7 +15,7 @@ namespace AyaNova.Models
         public uint Concurrency { get; set; }
 
         [Required]
-        public uint Serial { get; set; }
+        public long Serial { get; set; }
         public bool Active { get; set; }
         public string Notes { get; set; }
         public string Wiki { get; set; }
diff --git a/server/AyaNova/models/Quote.cs b/server/AyaNova/models/Quote.cs
index e9260127..449c228b 100644
--- a/server/AyaNova/models/Quote.cs
+++ b/server/AyaNova/models/Quote.cs
@@ -14,7 +14,7 @@ namespace AyaNova.Models
         public uint Concurrency { get; set; }
 
         [Required]
-        public uint Serial { get; set; }
+        public long Serial { get; set; }
         public bool Active { get; set; }
         public string Notes { get; set; }
         public string Wiki { get; set; }
diff --git a/server/AyaNova/models/WorkOrder.cs b/server/AyaNova/models/WorkOrder.cs
index a4e42bd3..21824af9 100644
--- a/server/AyaNova/models/WorkOrder.cs
+++ b/server/AyaNova/models/WorkOrder.cs
@@ -18,7 +18,7 @@ namespace AyaNova.Models
         public uint Concurrency { get; set; }
 
         [Required]
-        public uint Serial { get; set; }
+        public long Serial { get; set; }
         public bool Active { get; set; }
         public string Notes { get; set; }
         public string Wiki { get; set; }
@@ -41,7 +41,7 @@ namespace AyaNova.Models
         public uint Concurrency { get; set; }
 
         [Required]
-        public uint Serial { get; set; }
+        public long Serial { get; set; }
         public bool Active { get; set; }
         public string Notes { get; set; }
         public string Wiki { get; set; }
diff --git a/server/AyaNova/util/AySchema.cs b/server/AyaNova/util/AySchema.cs
index 89b7f239..2deb0395 100644
--- a/server/AyaNova/util/AySchema.cs
+++ b/server/AyaNova/util/AySchema.cs
@@ -466,7 +466,7 @@ namespace AyaNova.Util
                 await ExecQueryAsync("CREATE INDEX aworkordertemplateitem_tags ON aworkordertemplateitem using GIN(tags)");
 
                 //QUOTE                
-                await ExecQueryAsync("CREATE TABLE aquote (id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, serial bigint not null,  active bool, " +
+                await ExecQueryAsync("CREATE TABLE aquote (id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, serial bigint generated by default as identity not null,  active bool, " +
                 "notes text NULL, wiki text null, customfields text NULL, tags varchar(255) ARRAY NULL)");
                 await ExecQueryAsync("CREATE UNIQUE INDEX aquote_serial_id_idx ON aquote (id, serial);");//is this necessary or fruitful?
                 await ExecQueryAsync("CREATE INDEX aquote_tags ON aquote using GIN(tags)");
@@ -490,7 +490,7 @@ namespace AyaNova.Util
                 await ExecQueryAsync("CREATE INDEX aquotetemplateitem_tags ON aquotetemplateitem using GIN(tags)");
 
                 //PM                
-                await ExecQueryAsync("CREATE TABLE apm (id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, serial bigint not null,  active bool, " +
+                await ExecQueryAsync("CREATE TABLE apm (id BIGINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY, serial bigint generated by default as identity not null,  active bool, " +
                 "notes text NULL, wiki text null, customfields text NULL, tags varchar(255) ARRAY NULL)");
                 await ExecQueryAsync("CREATE UNIQUE INDEX apm_serial_id_idx ON apm (id, serial);");//is this necessary or fruitful?
                 await ExecQueryAsync("CREATE INDEX apm_tags ON apm using GIN(tags)");