# Duplicated serials

Usually this happens because serial was programmed before creation in ERP:

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/NCJimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/NCJimage.png)

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/sfgimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/sfgimage.png)

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/vhgimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/vhgimage.png)

Solution:

Download calibration files from serial without selected product:

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/P2Bimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/P2Bimage.png)

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/dlhimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/dlhimage.png)

Upload files to other serial to the calibration\_reports folder:

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/srZimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/srZimage.png)

Update additional calibration information on files:

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/30kimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/30kimage.png)

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/gqfimage.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/gqfimage.png)

[![image.png](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/scaled-1680-/RK8image.png)](https://how-to-erp.dewesoft.com/uploads/images/gallery/2024-03/RK8image.png)

Delete serial without product.