JDE Business Services

Hi, i have been able to create BSSV which calls NER and Business Functions from JDE.  We got an urgent change which require us, to read a table with multiple lines.   So in short instead of using the business service which calls an NER, we now have to create a custom BSSV which will read a custom table and outputs more than one row depending on the select statement.   I have done various search on the internet and there are no tutorials available on that.