Order & still has earmarked funds

What causes this issue?

There are still earmarked funds assigned to order &v1&.

System Response

You cannot delete order &v1&.

How to fix this error?

You must first delete all earmarked funds assigned to the order &v1&.

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

If you want to mark orders for deletion (on which earmarked funds are
still assigned), you can change this message from an error message to a
warning. To change the message type, use step
<DS:SIMG.SIMG_CFMENUORK3OBA5>Change Message Control</> (application area
KO, message number 033).
The system always ensures that the relevant order does not contain any
open commitments.

Error message extract from SAP system. Copyright SAP SE.