I am getting this error when trying to update an existing account via an ibo.

Error Index=1
ErrorNumber=1301 ErrorLocation=CContacts.GetContactByIDFromDatabase ErrorCategory=3
ErrorMessage=Invalid Contact entry. 13258

The user exists in IMIS and was created in IMIS. The datasource connects correctly.

Here's what my code looks like.

objContact.Initialize(DS)
objContact.Find(13258)

objContact.FirstName = "Test First Name"
objContact.LastName = "Test Last Name"

objContact.SubmitChanges()

It seems to generate the above error on the find object. Any help would be appreciate.