Configure error mappings on BPMN nodes to define how Maestro Orchestrate catches, evaluates conditions for, and routes runtime errors during process execution.

Each node in your BPMN process can have one or more error mappings that define how Maestro Orchestrate handles errors thrown at runtime. Use the Error mapping property in the properties panel to specify which errors a node catches, under what conditions, and how to route them.

Maestro Orchestrate distinguishes between two related concepts:

When a node throws an error at runtime, Maestro Orchestrate evaluates its error mappings in priority order and applies the first mapping whose condition evaluates to true.

要将 Error 映射添加到节点，请使用属性面板中的 Error 映射部分，定义节点捕获的 Error，以及在运行时如何路由这些 Error。

The error mapping is added to the node. Maestro Orchestrate evaluates it at runtime when the node throws an error, applying the first mapping whose condition evaluates to true.

Maestro Orchestrate evaluates error mappings in the order they appear. To change evaluation order, drag a mapping to a new position in the list. The mapping at the top is evaluated first.

Once an error mapping matches, Maestro Orchestrate routes the error to the appropriate handler attached to the node:

有关使用边界事件和事件子流程的建模模式，请参阅“错误和恢复”。

流程级错误在流程中的所有节点之间共享。要新建错误：

错误将添加到流程中，并在当前映射中处于选中状态。它现在可供任何节点的错误映射引用。

同一个错误可以由多个节点上的映射引用。