Steps that you should follow in order to see the bug, ie. 1. Go to 'Boxes' page. 2. Filled the Fields. 3. Check the "Create new samples" radio button. 4. Click on 'Add Batch' button. 5. Enter Batch Id, it opens the screen to add batch. 6. Click on Add button with empty Concentrations fields. 7. It will add the Batch. https://user-images.githubusercontent.com/45853972/214074117-fac18921-c868-4cad-a4d2-17ab676e1e4d.mov **Expected** It should not allow to add Batch with empty Concentrations fields. **My setup** - Device: Laptop - OS: macOS - Browser: Chrome