A new endpoint should be added to re-trigger workflows in error state. This endpoint needs to perform two operations on the SonataFlow service: (1) update the variables with new values; (2) call the SonataFlow retrigger endpoint.

• Orchestrator backend plugin - new endpoint details:

Method: POST
Body: new variables (must follow JSON schema)
Endpoint: /instances/<instanceId>/retrigger

This endpoint will throw an error if (a) the new variables don't follow the JSON Schema, (b) the instance is not in error state, (c) even with updated variables the workflow is not able to recover.

• SonataFlow - endpoint details:

Update the input variables
Method: PATCH
Body: new values (must follow JSON schema)
Endpoint: <serviceUrl>/<definitionId>/<instanceId>

Retrigger Instance in error state
Method: POST
Body: empty
Endpoint: <serviceUrl>/management/processes/<definitionId>/instances/<instanceId>/retrigger