Use the default account string when mapping groups of users to a shared routing rule. Normally this rule is already present to provide workload control within the Teradata system. The rule provides an effective way to group users and workloads according to the business need.
There is a delay between the time when the Unity sequencer starts and when the account strings are loaded. This may take 10 minutes depending on the setting in AccountStringScanFreq. Assign an appropriate default routing such as Reject to handle the appropriate users if the account strings were not loaded.