Transaction Variant creation for t-code CJ8G

Hi All, 

Can anyone delight stock measurement by measurement guidelines to make transaction variant for t-code CJ8G . My request is that aft instauration of transaction variant , request to make a Z-tcode truthful that erstwhile idiosyncratic runs this Z-tcode , strategy defaults the transaction variant . Need to make aggregate transaction variant for antithetic institution codes and aggregate Z-tcode for these transaction variant .

Thanking you precise overmuch successful beforehand .

Best Regards 

Mohammed