SDB to SDB SmartLink

[rufustaz]

I have a SmartWindow with 2 SDO's and they are linked by po-num. I have a SDB to the one SDO and another SDB to the other SDO. I need to create a SmartLink so that when you choose the Main SDB the other SDB brings up the correct information relating to the MAIN SDB.

Example:
Purchase Order # ----> Purchase Order Lines.....

Thanks in advance