Hello,

I deployed an infopath form to our sharepoint 365 site but are having an issue with the people picker.

json undefined,
I saw methods to repair this on this site already by adjusting my IE settings
by hitting F12 and changing the document mode from edge to 10 but is there a permanent
fix?<o:p></o:p>

Hi,

For my test, I customize a list form using InfoPath and add a  Person/Group Picker " control. Then I test it in my IE 10, but all work fine.

You can turn off the compatibility view setting for your site for a try. Press ALT, and then click Tools in the Menu bar, click Compatibility View Settings, turn OFF compatibility mode for intranet sites.

Here is a similar issue post for your reference:

https://social.technet.microsoft.com/Forums/en-US/f6910545-7528-4503-be85-89a156f89c1d/sharepoint-2013-json-is-undefined-error?forum=sharepointdevelopment

Best Regards,

Lisa Chen

Hi Lisa,
Thank you for answering but that did not work unfortunately

Is there anyway to have the InfoPath form automatically make these adjustments?

Also we are running IE11

• Edited by Christopher O'Donovan Thursday, June 25, 2015 11:51 AM

Hi Christopher,

You can try the 2nd approach from the below link.

http://www.enjoysharepoint.com/Articles/Details/json-is-undefined-error-in-sharepoint-2013-infopath-person-group-21236.aspx