diff --git a/helpers/lotOccupancyDB/addWorkOrderMilestoneType.d.ts b/helpers/lotOccupancyDB/addWorkOrderMilestoneType.d.ts
new file mode 100644
index 00000000..d9fdaf9d
--- /dev/null
+++ b/helpers/lotOccupancyDB/addWorkOrderMilestoneType.d.ts
@@ -0,0 +1,7 @@
+import type * as recordTypes from "../../types/recordTypes";
+interface AddWorkOrderMilestoneTypeForm {
+    workOrderMilestoneType: string;
+    orderNumber?: number;
+}
+export declare const addWorkOrderMilestoneType: (workOrderMilestoneTypeForm: AddWorkOrderMilestoneTypeForm, requestSession: recordTypes.PartialSession) => number;
+export default addWorkOrderMilestoneType;
diff --git a/helpers/lotOccupancyDB/addWorkOrderMilestoneType.js b/helpers/lotOccupancyDB/addWorkOrderMilestoneType.js
new file mode 100644
index 00000000..98eb01ad
--- /dev/null
+++ b/helpers/lotOccupancyDB/addWorkOrderMilestoneType.js
@@ -0,0 +1,18 @@
+import sqlite from "better-sqlite3";
+import { lotOccupancyDB as databasePath } from "../../data/databasePaths.js";
+import { clearWorkOrderMilestoneTypesCache } from "../functions.cache.js";
+export const addWorkOrderMilestoneType = (workOrderMilestoneTypeForm, requestSession) => {
+    const database = sqlite(databasePath);
+    const rightNowMillis = Date.now();
+    const result = database
+        .prepare("insert into WorkOrderMilestoneTypes (" +
+        "workOrderMilestoneType, orderNumber," +
+        " recordCreate_userName, recordCreate_timeMillis," +
+        " recordUpdate_userName, recordUpdate_timeMillis)" +
+        " values (?, ?, ?, ?, ?, ?)")
+        .run(workOrderMilestoneTypeForm.workOrderMilestoneType, workOrderMilestoneTypeForm.orderNumber || -1, requestSession.user.userName, rightNowMillis, requestSession.user.userName, rightNowMillis);
+    database.close();
+    clearWorkOrderMilestoneTypesCache();
+    return result.lastInsertRowid;
+};
+export default addWorkOrderMilestoneType;
diff --git a/helpers/lotOccupancyDB/addWorkOrderMilestoneType.ts b/helpers/lotOccupancyDB/addWorkOrderMilestoneType.ts
new file mode 100644
index 00000000..bf6340cb
--- /dev/null
+++ b/helpers/lotOccupancyDB/addWorkOrderMilestoneType.ts
@@ -0,0 +1,46 @@
+import sqlite from "better-sqlite3";
+
+import { lotOccupancyDB as databasePath } from "../../data/databasePaths.js";
+
+import { clearWorkOrderMilestoneTypesCache } from "../functions.cache.js";
+
+import type * as recordTypes from "../../types/recordTypes";
+
+interface AddWorkOrderMilestoneTypeForm {
+    workOrderMilestoneType: string;
+    orderNumber?: number;
+}
+
+export const addWorkOrderMilestoneType = (
+    workOrderMilestoneTypeForm: AddWorkOrderMilestoneTypeForm,
+    requestSession: recordTypes.PartialSession
+): number => {
+    const database = sqlite(databasePath);
+
+    const rightNowMillis = Date.now();
+
+    const result = database
+        .prepare(
+            "insert into WorkOrderMilestoneTypes (" +
+                "workOrderMilestoneType, orderNumber," +
+                " recordCreate_userName, recordCreate_timeMillis," +
+                " recordUpdate_userName, recordUpdate_timeMillis)" +
+                " values (?, ?, ?, ?, ?, ?)"
+        )
+        .run(
+            workOrderMilestoneTypeForm.workOrderMilestoneType,
+            workOrderMilestoneTypeForm.orderNumber || -1,
+            requestSession.user.userName,
+            rightNowMillis,
+            requestSession.user.userName,
+            rightNowMillis
+        );
+
+    database.close();
+
+    clearWorkOrderMilestoneTypesCache();
+
+    return result.lastInsertRowid as number;
+};
+
+export default addWorkOrderMilestoneType;