diff --git a/scripts/migrate-expenses.ts b/scripts/migrate-expenses.ts
index 6c20eb6..215f2bb 100644
--- a/scripts/migrate-expenses.ts
+++ b/scripts/migrate-expenses.ts
@@ -116,8 +116,9 @@ const createManyNewExpenses = async (timesheet_id: number, old_expenses: OldExpe
             mileage = old_expense.value!;
             amount = mileage * 0.72;
         }
-        if (mileage < 0) {
+        if (mileage < 0 || amount < 0) {
             console.warn(`expense of value less than '0' found`)
+            continue;
         }
 
         if (old_expense.date == null) {
diff --git a/scripts/migrate-shifts.ts b/scripts/migrate-shifts.ts
index 5b966c4..a3dfce5 100644
--- a/scripts/migrate-shifts.ts
+++ b/scripts/migrate-shifts.ts
@@ -22,13 +22,13 @@ type OldShifts = {
 }
 
 export const extractOldShifts = async () => {
-    for (let id = 1; id <= 61; id++) {
+    // for (let id = 1; id <= 61; id++) {
         console.log(`Start of shift migration ***************************************************************`);
-        const new_employee = await findOneNewEmployee(id);
-        console.log(`Employee ${id} found in new DB`);
+        const new_employee = await findOneNewEmployee(50);
+        console.log(`Employee ${50} found in new DB`);
 
         const new_timesheets = await findManyNewTimesheets(new_employee.id);
-        console.log(`New Timesheets found for employee ${id}`);
+        console.log(`New Timesheets found for employee ${50}`);
         for (const ts of new_timesheets) {
             console.log(`start_date = ${ts.start_date} timesheet_id = ${ts.id}`)
 
@@ -62,7 +62,7 @@ export const extractOldShifts = async () => {
             });
             await createManyNewShifts(new_timesheet.id, old_shifts);
         }
-    }
+    // }
     await prisma_legacy.$disconnect();
     await prisma.$disconnect();
 }
diff --git a/scripts/migration.service.ts b/scripts/migration.service.ts
index 88dcb82..2bb37d6 100644
--- a/scripts/migration.service.ts
+++ b/scripts/migration.service.ts
@@ -1,6 +1,6 @@
-import { extractOldTimesheets } from "scripts/migrate-timesheets";
-import { extractOldExpenses } from "scripts/migrate-expenses";
-import { extractOldShifts } from "scripts/migrate-shifts";
+// import { extractOldTimesheets } from "scripts/migrate-timesheets";
+// import { extractOldExpenses } from "scripts/migrate-expenses";
+// import { extractOldShifts } from "scripts/migrate-shifts";
 import { Injectable } from "@nestjs/common";
 
 @Injectable()
@@ -8,14 +8,14 @@ export class MigrationService {
     constructor() {}
 
     async migrateTimesheets() {
-        extractOldTimesheets();
+        // extractOldTimesheets();
     };
 
     async migrateShifts() {
-        extractOldShifts();
+        // extractOldShifts();
     }
 
     async migrateExpenses() {
-        extractOldExpenses();
+        // extractOldExpenses();
     }
 }
\ No newline at end of file
diff --git a/src/main.ts b/src/main.ts
index 5b9134b..6dc2a03 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -18,7 +18,6 @@ import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
 import { writeFileSync } from 'fs';
 import * as session from 'express-session';
 import * as passport from 'passport';
-// import { extractOldTimesheets } from 'scripts/migrate-timesheets';
 import { extractOldShifts } from 'scripts/migrate-shifts';
 import { extractOldTimesheets } from 'scripts/migrate-timesheets';
 import { extractOldExpenses } from 'scripts/migrate-expenses';
@@ -98,6 +97,6 @@ async function bootstrap() {
     // migration function calls
     // await extractOldTimesheets();
     // await extractOldShifts();
-    // await extractOldExpenses();
+    await extractOldExpenses();
 }
 bootstrap();