I got this report automatically generated after i tried creating record in salesforce ,manually from radian 6 engagemnet console.

Error: com.radian6.integration.services.sf.exception.UnableToCreateSalesforceObjectException: Who ID: id value of incorrect type: 001i0000008ou4FAAQ

Topic Profile: abcd_test : 508498

Post: TWEET FROM: abc 130872007916 Salesforce.com Org Name: Company Salesforce.com Org Id: 00Di0000000YOIyEAO

Radian6 User Id: 150486

Radian6 Client Id: 12857

Radian6 Job Id: risJobId:150486:00Di0000000YOIyEAO_116609300

Radian6 Username: Abcdefgh

Error: com.radian6.integration.services.sf.exception.UnableToCreateSalesforceObjectException: Who ID: id value of incorrect type: 001i0000008ou4FAAQ

Any idea why ?