How to set landing page with Reconciliation key as ACS ID?
Hi,
The default Reconciliation key using email is very unsecured, as end user could update any profile info if they know other 's email address.
Thus I need to use acs id as reconsiliation key, In the landing page form, I have a field with name "acsId" and it is pre-filled the value correctly, but the landing page keep re-direct to error page when submitted.
Here is the setting I have in the Job setting,

Thanks