Conditions for deploying a message flow to a Version 2.1 broker

If you want to deploy a message flow to a Version 2.1 broker that is participating in a Version 6.0 broker domain, the message flow must satisfy the following conditions:
Related concepts
Broker schema
Conditions for a Version 2.1 broker participating in a Version 6.0 broker domain
Message flow application deployment
Message flows, mappings, and ESQL
ESQL modules
Related tasks
Migrating a message flow
Related reference
Built-in nodes