SAP Message AA902 - You cannot delete. Open purchase requisition exists

Diagnosis
You want to delete asset &V1& &V2&. However, open purchase requisitionsstill exist for this asset.

System Response
You cannot delete this asset.

Procedure
If you still want to delete the asset, the account assignment in theasset has to be corrected for the purchase requisition,
or
you have to cancel the purchase requisition