We are working on updating selection field to null via (SOAP) Web services in Sage CRM v7.3 b.
We have created one custom entity in Sage CRM using .Net API entity wizard and also enabled Web services for the same. We have tried above code for Text and Integer fields and found that it is working as expected. However we are trying the same for Selection fields then it does not update null value in database.
We have even checked above code for Standard Entities like Case, Company etc. but we are getting same behavior. Initially we thought it may be an issue with patch; however we found same results in v7.2 and v7.3 with different patches.
Any help in this regards would be appreciated.