Permissions to change the OrigSystem Attribute

Summary:

I am trying to change the OrigSystem Attribute in ORIG_SYS_REFERENCES entity, but I am having an error.

Content (required):

I am using the web service called updateOrganization from OrganizationServiceSoapHttp with this XML:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:typ="http://xmlns.oracle.com/apps/cdm/foundation/parties/organizationService/applicationModule/types/" xmlns:org="http://xmlns.oracle.com/apps/cdm/foundation/parties/organizationService/" xmlns:par="http://xmlns.oracle.com/apps/cdm/foundation/parties/partyService/" xmlns:sour="http://xmlns.oracle.com/apps/cdm/foundation/parties/flex/sourceSystemRef/" xmlns:con="http://xmlns.oracle.com/apps/cdm/foundation/parties/contactPointService/"