Unexpected Web Service Authorization Errors at Run Time
When a Commerce Server 2009 R2 adapter endpoint is not authorized to access its corresponding Commerce Server 2009 R2 Web service, it is shut down and an error message is written to the event log. When this occurs, consider whether the BizTalk Server host instance account under which this adapter endpoint is running has different credentials than you used when you originally configured the adapter endpoint. You can resolve authorization errors such as these by using one of the following methods:
Provide the values for the Web Service Username and Web Service Password transport properties of the relevant Commerce Server 2009 R2 adapter endpoint. These values should specify the credentials of a user who is authorized to use the required Web service APIs.
Use Authorization Manager to grant the appropriate user rights to the account under which the BizTalk Server host instance is running.
For more information about the APIs that the Commerce Server 2009 R2 adapters for BizTalk Server use, see BizTalk Adapters Authorization Requirements.