Using Task Group in Workload Analysis (RSWILOAD)

[Rivera, Raul]

We are in 4.6c

We have created a task group (90000001) that groups our custom tasks. We
intend to use the task group as input parameter in workload analysis
(RSWILOAD). 

However, we are getting a 'No task available with the specified number'
message from SWI5. Moreover, the system appends 2 zeros in the task ID
converting the 8 digit ID into a 10 digits (90000001 --> 9000000001). We've
also entered an SAP provided task group and got the same result.

Are we missing something here? 

Raul