Note!
Rollback is applicable for batch workflows only.
The rollback function block is executed for each batch when a transaction fails. In a rollback block, actions that concern transaction safety can be performed. The transaction is referred to by the special TransactionDetails UDR that contains the transaction id.
Note!
If a transaction fails during commit, it will try to commit again, and will not be sent to the rollback block.
The udrRoute function cannot be used in the rollback block.