Infopath 2010 field using External Data Connection of SharePoint BCS

Question

I created an Infopath 2010, which I am then publishing to SharePoint in a forms library. My first field is a BCS field, which is pulling from CRM.

I set-up my external data field, and when I type in a name it will run the check to confirm that it is from CRM. However, if I try to use the picker it throws the error:

An error occurred while obtaining business data by using the Picker web service. Contact your system administrator.

I have been unable to find any information regarding this error, and any help would be appreciated.

Answer 1

Okay, the answer was staring me in the face, and I just didn't see it the whole time. (I'm almost embarrassed to admit it!)

I had told the form to connect to the external data source through SharePoint; however the form was actually opening in InfoPath, and not via SharePoint's built in browser form. As soon as I went into the advanced settings, and said to use the browser form, and not the client application the web picker worked perfectly.

Thank you for your assistance on this issue Andreas. It was greatly appreciated.