Abstract: Techniques of detecting errors on a transaction channel. As described herein, nodes that perform actions of a transaction channel automatically generate reception records that memorialize receptions by the nodes of transaction items that represent financial transactions. These reception records can be analyzed to determine whether a node that performs an action in the transaction channel failed to receive a transaction item within an expected time. If a node that performs an action in the transaction channel failed to receive a transaction item within the expected time, an error remediation process may be performed.