# Item Management

## How to Create a new Item Revision

| ### What to do:
| To work through this example, you must have completed the example Change the Item State.
| Select Start > Items. The Item mask is opened.
| Select the item ART-1541 Clip Top.
| A new item version can only be created from the status 240 | In Change.
| Change to status 240 | In Change.
| Select Revisioning > Create New Revision > Without structures from the context menu. A copy of the respective item is created. It is in editing mode. In the Revision field the revision number is incremented, but the item number remained the same.
| To save the entry click .
| When modifying the unit of measurement for an item revision, it can lead to inconsistent data in the BOM. The reason is that the normalized quantity (calculation based on the unit of measurement defined for the item revision) is stored in the BOM in addition to the BOM specific quantity and unit of measurement. If the unit is modified, it has to be ensured (manually) that the quantities in the BOM are still consistent. The following error message will be displayed when trying to change the unit: