InfoSet: Join InfoObjects with same data type but different length

Hi experts,

In an InfoSet, i want to join 2 InfoObjects from 2 InfoCubes.

Although these 2 InfoObjects have the same data type CHAR,

but they have different length in their definition:

Project_ID CHAR 24

Product_ID CHAR 40

This is not allowed when join them in InfoSet.

So could you give any suggestion or workaround

to meet this requirement?

Thanks in advance!

Regards,

Napoleon