Error when structuring reference fields in Financial Accounting

What causes this issue?

At least the following field is at its initial setting:
Company code ('&v1&')
Fiscal year ('&v2&')
Document No. ('&v3&')

System Response

Reference fields can only be set up if all fields are transferred when
filled.

How to fix this error?

A system error has occurred in this case.

Error message extract from SAP system. Copyright SAP SE.