SAP Message BRAIN570 - Input-ready formula &1 uses illegal exception cell &2

Diagnosis
Input-ready formula &V1& is in the key figure structure and uses cellV2 as an operand. exception cell v2 has a value that can change whenentries are made. This can occur in the following cases:
Exception cell &V2& is input ready.
Exception cell &V2& is a formula that input-ready values are enteredinto.
Input-ready exception cells cannot be used in a formula in the keyfigure structure, as there are no inverse formulas for them.
Modeling options that are permitted in terms of inverse formulas inqueries with two structures and exception cells are described in thedocumentation.

System Response
The query has errors and will not be generated.

Procedure
Adjust the query definition accordingly.