SAP Message UCMI039 - Doc.type &1: Document field "&2" must be permanently fixed

Diagnosis
In document type customizing on the Document Field Options tab,you can choose options for "fixing" document fields. Note that if thedocument type is used for consolidation of investments, the documentfields with the role investee unit must have the fixing optionpermanent.
However, in document type &V1& the fixing option for document field '
V2' is not permanent even though the field has the roleinvestee unit and the document type is used for consolidation ofinvestments.

System Response
Processing is terminated.

Procedure
In document type &V1&, choose the fixing option permanent fordocument field '&V2&'.