SAP Message CC482 - You cannot have more than 10 & fields in &

Diagnosis
The number of variable fields for effectivity &V2& is restricted to 10for distribution.

System Response
The system checks the number of parameters that you have definedyourself for the change number effectivity type. Change numbers canonly be distributed if a maximum of 10 self-defined parameters havebeen allocated to the effectivity type.

Procedure
Check your settings in Customizing (work step:Define effectivity types).