Weekly ETL pipeline: QuickBooks financial data to Google BigQuery

Quick overview This template sets up a weekly ETL (Extract, Transform, Load) pipeline that pulls financial data from QuickBooks Online into Google BigQuery. It not only transfers data, but also cleans, classifies, and enriches each transaction using your own business logic. How it works Every Monday, the workflow automatically fetches all transactions from the previous week directly from your QuickBooks Online account. Custom business logic cleans up text fields, generates stable transaction IDs, and classifies each transaction as income, expense, or internal transfer. The cleaned and enriched data is prepared as a bulk-insert-ready SQL statement formatted for BigQuery compatibility. The str

Help me set up the n8n workflow "Weekly ETL pipeline: QuickBooks financial data to Google BigQuery" (https://n8n.io/workflows/6493). It uses: QuickBooks Online, Google BigQuery, Code. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.