You cannot delete. Open purchase order exists

What causes this issue?

You want to delete asset &V1& &V2&. However, outstanding purchase
orders or contracts still exist for this asset.

System Response

You cannot delete the asset.

How to fix this error?

If you still want to delete the asset, you have to correct the account
assignment to the asset in the purchase order or you must archive the
purchase order.

Error message extract from SAP system. Copyright SAP SE.