SELECTED ANSWER
replied on November 21, 2016
Hi Lidija,
Where are you being prompted for participant passwords?
If you have configured distinguished names in the LDAP profile to synchronize as Forms participants, you should be able to just click the "Synchronize" button, and the users should appear. They will be able to log in using their e-mail address and Windows account password; you should not be prompted to include a password for these users. If you are using the "Add Participant" button, that is adding a completely separate kind of Participant, not related to the LDAP Participants. You can think of it like the difference between a Laserfiche named user and a Windows account with a named user license for a Laserfiche repository.
If you have set up the LDAP profile and no users are being synchronized to have Participant licenses, there may be an issue with the configuration of the LDAP profile.
Hope this helps to clear it up, and please let me know if I've misunderstood the situation.