Instead of simply discarding valuable materials you no longer need, try for a safer alternative: deactivation. By choosing deactivation over direct delete, you retain control and ensure traceability.
Follow the steps in the video below to deactivate your materials:
1) Go to Your Catalog
2) Select the Material you Need to Deactivate
3) Go to the Stock Tab
4) Click on the button on the right to Deactivate the material
To reactivate your materials, you can do it through the same button, turning it on.