The flow type for cash flow &1 could not be determined

What causes this issue?

Please refer to the information for the flow types in the
<DS:SIMG.REFX_V_TIVCERULE>valuation rules</> and for the
<DS:TX.RECE_FLOWREL>reference flow types</>.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.