Special posting document &1 cannot be reversed

trados = fi

What causes this issue?

The special posting document (&V2&) posted in the cash journal cannot be
reversed.

System Response

The document cannot be reversed with the function selected.

How to fix this error?

You can access the reversal function in the cash journal menu under <LS>
Process/Reverse Special Posting Documents</>.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.