Allocation of Different Device Category via MM-IM 
Prerequisites
The device you wish to modify is maintained in the Inventory Management (MM-IM) application component.
Procedure
Choose
Choose
You branch to the screen for entering transfer postings.
Enter movement type 309 (transfer posting material to material). You must also enter a storage location and a plant. Chose Continue .
You branch to the screen for entering new transfer posting items. Here you can carry out all transfer postings.
Result
A different device category (material) has been allocated to the device.