Systems, methods, and other embodiments associated with transmission of messages over a blockchain network are described. In one embodiment, a method includes extracting message data from a source database. The message data is evaluated to identify a message type of the message. A message template is selected from a set of message templates based upon the message template corresponding to the message type of the message. The message data is decomposed into a set of parameter values that are populated into the message template to create a transaction message in the blockchain message format. The transaction message is routed to a blockchain node for routing over the blockchain network.