True or False: The handler in AMI creates or modifies Avaloq data.

The statement is true because a handler in the Avaloq Message Interface (AMI) is responsible for processing messages that involve the creation, modification, or deletion of data within the Avaloq banking platform. Handlers are designed to interpret incoming messages, perform the required actions on the data, and send responses back to the source of the message.

This capability means that handlers can both create new records when necessary and modify existing ones, depending on the specific operation defined in the message they are processing. Therefore, the correct choice accurately reflects the dual functionality of handlers within the AMI environment, effectively managing the lifecycle of data in the system.