SAP Message RSTRAN569 - Rule &1 (target field: &2 group: &3): Selected source field not possible

Diagnosis
The selected source field cannot be used as there is a differentdistribution rule, in which a different source field (&V4&) has beenchosen. As the selected source field has a rougher granularity than thetarget field &V2&, the system tries to apply a time distribution. Thesource field must be identical for all time distributions in the group.

System Response
An error message appears and the transformation cannot be activated.

Procedure
Check the rule and select a different source field.