The Connector to Quality Center ALM stores SBM user and password information for the Connector user in a data mapping table in SBM Composer. This is the SBM user account that the Connector uses to synchronize data from Quality Center to SBM. If you wish to change these credentials, you can open the Quality Center Connector process app in SBM Composer, then expand the Orchestration Workflows under Workflow Design. From here, you can display Data Mapping and modify the user ID or password for the Connector user. See the screen capture below.