SAP Message AP2003 - 'Role in hierarchy' field: Entry &1 not possible, see long text

Diagnosis
You tried to enter the value '&V1&', but a subordinate position has thevalue '&V2&'.

System Response
The entry is rejected.

Procedure
Only the following combinations are allowed:
Position has value '2' (totals position) - Subordinate position canhave the value '2' (totals position) or '1' (strategic programposition) or remain blank.
Position has value '1' (strategic program position) - Subordinateposition can have value '1' (strategic program position) or remainblank.
The values of position and subordinate position remain blank.
(Refer also to the F1 help for the field!)