0 - 2 of 2 tags for multi-step

We have recently upgraded to TRM6.2. I am interested in creating multi-step communications but haven't done this yet. I followed the directions of setting up a Response and disposition code and created a multistep communication, using the User guide from training. I ran the communication and have results in the first output but zero in the second.

Does anyone have experience of creating a TRM Multi-Step campaign trying to reference custom tables (like EX_RESPONSE) so extract format content can be dynamically allocated according to the response received? We're having problems joining to this table.

Any suggestions or documentation appreciated.