FlowConfig

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FlowConfig holds runtime behavior. Unlike StartFlowOptions, it is mutable after start.

Use ConfigOverride in StartFlowOptions to change the initial configuration for one Flow. It changes only the fields you provide. It does not replace the whole FlowConfig. At start, Dex applies the supplied fields over the Dex Server defaults. Omitted fields keep their default values.

Field	Behavior
ActiveStepSearchMode	Index every active Step, only Steps that ran WaitFor, or no active Steps. The built-in server default does not index active Steps. Set an explicit mode to opt in.
StepDurability	Default durability for methods without a Step override. Dex resolves a method override first, then this value, then SYNC. Dex pins the durability when a method call becomes pending, so a change affects only method calls scheduled afterward.
AttributeStoreNames	Dex Server Attribute Stores for Attributes that opt in to Attribute sync.

Update FlowConfig with a Client

Call UpdateFlowConfig while the Flow is active. Send only the fields you want to change. Dex merges them with the existing configuration. The SDK UpdateFlowConfig call does not change the Flow's Worker routing.