If your client has been able to log in to their account in the past, we recommend that they try and reset their password to see if that does the trick. Your client can reset their password at this link: https://www.aisleplanner.com/signin. Beneath the login area, they’ll see the option (in gray) for password assistance and to reset their password.
They can also reset their password from your custom branded login page by clicking on the FORGOT YOUR PASSWORD? link. On a side note, passwords are case sensitive.
If they’ve never been able to log in to their account or if they didn't create an adjoining account using the emailed invitation you initially sent them, resend their invitation link under their user name from the Planning Partners page (under the More Options Menu) in their event or project.
If this doesn’t do the trick, contact us for assistance.