Sales document &1 is currently blocked by an active workflow

What causes this issue?

You want to process sales document &V1&.

System Response

At the moment, a workflow exists that will be initiated if you change
the master contract.

How to fix this error?

If the status of the document is not going to change for a long period
of time, see your workflow or system administrator. Use work item ID
&V2&.

Error message extract from SAP system. Copyright SAP SE.