Why is my GoHighLevel Inbound Webhook not creating or updating contacts?

Fix our GoHighLevel Inbound Webhook workflow that fails with "Contact could not be Created/Updated as no differentiation field value was provided (Email or Phone)":
1. Inspect the Inbound Webhook Trigger payload structure to verify the exact paths for phone and email (e.g. inboundWebhookRequest.phone vs inboundWebhookRequest.body.phone).
2. Insert a native "Format Data — Format Phone Number" action before "Create/Update Contact" to normalize the incoming phone string into E.164 (+1XXXXXXXXXX).
3. Map the formatted phone token and raw email token into the "Create/Update Contact" action and verify deduplication settings match Phone first, then Email.

# 1. MCP Tool Call (ghl-crm-mcp)
{
  "tool": "workflows_create_from_recipe",
  "arguments": {
    "location_id": "<YOUR_LOCATION_ID>",
    "recipe": "inbound_webhook_e164_contact_upsert",
    "dedupe_by": ["phone", "email"],
    "dry_run": true
  }
}

# 2. Or run via ghl-crm Rust CLI
ghl-crm workflows apply-recipe --location-id <YOUR_LOCATION_ID> --recipe inbound-webhook-upsert --dry-run