Thanks for attaching that doc file.  Could you please put more snapshots in it ?  In particular, it would be useful to have a "tour" of snapshots, showing the following, in order:

1) Some snapshots showing how you generate the DWA link and generate the email [ don't go crazy here, just a few snapshots so if someone wants to try to set up the same experiment, they have enough idea about how to set it up ]

2) Snapshot of the received email before user clicks the link [ NOTE:  Blur or otherwise obliterate private data fields ! ]

3) Snapshot of what user sees when they first click the link (the form they will be filling in)

4) Snapshot of filled in form before user clicks submit

5) Snapshot of the first error user sees when they forget to fill in some required fields

6) Snapshot of filled in form before user submits it the second time

7) Snapshot of second error they see (I believe this is what you already show in the doc)

Thanks.  /Eric

Thanks for posting those pictures.  Did you try Phani's suggestion ?  /Eric