Update HubSpot when a new invoice is registered in Stripe

This workflow automatically posts a message in Slack when a new invoice is uploaded in Stripe, and it updates the fields in the HubSpot CRM. Prerequisites A Slack account and credentials A HubSpot account and credentials A Stripe account and credentials Nodes Stripe Trigger node triggers the workflow when a new invoice is uploaded. IF nodes filter the invoices that don't have a PO number and if there is no deal for the PO. HubSpot nodes retrieve deals with the specific PO number and update the deal status to 'paid'. Slack nodes post messages about the deals in a Slack channel.

Help me set up the n8n workflow "Update HubSpot when a new invoice is registered in Stripe" (https://n8n.io/workflows/1468). It uses: Slack, HubSpot. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.