Enable ABAP Class in 7x Web Template

Hi All,

We are upgrading Web Templates from 3x to 7x and we need inputs for amending Custom ABAP Class in 7x web templates. In existing 3x version there are couple of web templates which concatenate columns based on custom abap class, this option is enabled via Results_Table > Table Interface Class > Custom Class is called. But when it comes to 7x version how do we acheive enabling the custom class.

I have tried Custom Extension from Miscellaneous and enabled the Custom ABAP class but the query fails upon execution

Thanks

Abhishek Shanbhogue