Is there any control or validation on the PO linkage with the lease contract?

Summary:

We are currently utilizing the Lease Accounting feature, which allows us to associate a lease contract with a specific PO number and PO line.

My question is regarding the validations applied to this linkage. For example:

• It is possible to link a PO whose amount is either greater or less than the lease contract value, which means there is no validation.
• Additionally, when the AP team generates a PO-based invoice, there doesn’t appear to be a direct connection between the invoice and the lease contract.

Could you please clarify what controls or validations are enforced in this scenario?