Why is a field required on the layout?

Hi,
I am wanting to use CustomFieldMapping both for speed and because my field names do not match.
I am just wondering why I am required to have one field still on the layouts that I create in GoZyncMobile?
I have run into an issue, in that for some of my tables I literally have 0 fields that have the same name in my hosted and mobile databases - how can I work around this without renaming fields or adding new ones to both sides?
Is there a way to get the sync working with blank layouts?
Thanks,
Paul.
I am wanting to use CustomFieldMapping both for speed and because my field names do not match.
I am just wondering why I am required to have one field still on the layouts that I create in GoZyncMobile?
I have run into an issue, in that for some of my tables I literally have 0 fields that have the same name in my hosted and mobile databases - how can I work around this without renaming fields or adding new ones to both sides?
Is there a way to get the sync working with blank layouts?
Thanks,
Paul.