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This event fires when a case moves from one phase to the next in the arbitration process. Use it to trigger time-sensitive actions — like filing documents that are only allowed in certain phases, or notifying your team that a deadline window has opened.

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Phases

Cases progress through these phases in order:
Phase IDNameWhat happens
caseInitiationCase InitiationClaimant creates the case and files their statement of claim.
caseFilingCase FilingClaimant pays the filing fee and initiates service of notice to the respondent.
responseResponseRespondent is given a window to join the case and submit their statement of response.
arbitratorAppointmentArbitrator AppointmentA neutral arbitrator is assigned to the case.
caseManagementConferenceCase Management ConferenceParties may file motions. The arbitrator outlines upcoming deadlines.
evidenceSubmissionsEvidence SubmissionsBoth parties submit any remaining evidence.
evidenceExchangeEvidence ExchangeAll private evidence becomes visible to both sides.
preHearingSubmissionsPre-Hearing SubmissionsBoth parties submit their final written statements.
hearingHearingThe case manager organizes all materials for the arbitrator.
deliberationDeliberationThe arbitrator reviews everything and prepares a decision.
awardIssuanceAward IssuanceThe arbitrator issues the final award and the case is closed.

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Payload

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caseID
string
required
The case that changed phases.
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previousPhaseID
string
required
The phase the case transitioned from.
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currentPhaseID
string
required
The phase the case transitioned to.

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Example

{
  "id": "5196af625fdd",
  "timestamp": "2025-08-15T14:32:10Z",
  "event": "phase_changed",
  "data": {
    "caseID": "2025-08-00292",
    "previousPhaseID": "evidenceExchange",
    "currentPhaseID": "preHearingSubmissions"
  }
}

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Common patterns

Listen for currentPhaseID: "preHearingSubmissions" and automatically create and submit your Final Statement of Case using the filing endpoints.
If the case moves from response to arbitratorAppointment without the respondent filing, you can file a motion requesting a default ruling.