I have a web service and I need to create an external content type. I am using SPD but that is not working. It is asking me to select at least one field and the errors will not go away. So I am stuck with it.

Is there no otherway to build an external content type?

enter image description here

  • Which data source are you connecting to??
    – Aanchal
    Sep 11, 2014 at 10:07
  • I am using WCF service data source
    – Imir Hoxha
    Sep 11, 2014 at 10:11

2 Answers 2


You are getting errors because you are trying to map Int32 to a field that is not Int32 (in your case 'username' which I assume is some text\string value) you need to map to INT32 field.


From the screenshot provided select the ID fields as your identifier field, all the errors will be gone

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.