How To Fix VSCE453 - BOM item &2 in &1: several items for the same key

SAP Error Message - Details

• Message type: E = Error

• Message class: VSCE - Messages for SCE

• Message number: 453

• Message text: BOM item &2 in &1: several items for the same key

What causes this issue?

More than one item with the same type (material number, class) exists
for the item number specified.

System Response

The items are all copied into the knowledge base. However, erroneous
assignments can result when you select bill of material items in the IPC
configuration, for example in the following instances:
when loading configuration data from the external format
when evaluating dependencies in the SCE advanced mode (HAS_PART
Constraint)

How to fix this error?

Assign different item numbers to the bill of material items.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.