AI marketing report (Google Analytics & Ads, Meta Ads), sent via email/Telegram

What this workflow does This workflow retrieves Online Marketing data (Google Analytics for several domains, Google Ads, Meta Ads) from the last 7 days and the same period in the previous year. The data is then prepared by AI as a table, analyzed and provided with a small summary. The summary is then sent by email to a desired address and, shortened and summarized again, sent to a Telegram account. This workflow has the following sequence: time trigger (e.g. every Monday at 7 a.m.) retrieval of Online Marketing data from the last 7 days (via sub workflows) assignment and summary of the data retrieval of Online Marketing data from the same time period of the previous year allocation and summa

Help me set up the n8n workflow "AI marketing report (Google Analytics & Ads, Meta Ads), sent via email/Telegram" (https://n8n.io/workflows/2783). It uses: Send Email, HTTP Request, Telegram, Facebook Graph API, Google Analytics, Code, AI Agent, OpenAI Chat Model, Calculator, Call n8n Workflow Tool, OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.