Case study 01 · Demo project

    Automated CRM with n8n: four tools, one workflow.

    A hands-on experiment that connects Notion, an AI model and Brevo through n8n to run an email sequence with an initial message and two follow-ups.

    • n8n
    • Notion
    • AI model
    • Brevo
    • Marketing automation
    Illustrative diagram of the automated CRM: a scheduled trigger starts three paths (initial email, follow-up 1, follow-up 2); each path reads contacts from Notion, generates the message with an AI model, sends the email with Brevo and updates the record in Notion.
    Illustrative diagram of the workflow, not a screenshot of a run: the labels and quantities in the drawing are not metrics.
    The problem

    Why this project?

    Handling sales communications with separate tools means repeating the same steps over and over: looking up the contact’s details, drafting the message, sending the email and noting what was done. Every manual step costs time and is a chance for error.

    We chose this process as a test bed to study how different applications can work together in a single automated flow.

    The goal of the demo

    Build a sequence with an initial message and two follow-ups, checking how data moves between different tools and how AI can be used to draft the copy.

    Architecture and technologies

    n8n

    Orchestrates the whole flow and starts the operations with a scheduled trigger.

    Notion

    The database the flow reads contacts from and updates records in.

    AI model

    Drafts the message copy from the contact’s data.

    Brevo

    Sends the transactional emails.

    The workflow steps

    The trigger starts three paths, one per stage: initial email, follow-up 1 and follow-up 2. Each path runs the same four operations:

    1. 01

      Data retrieval

      The workflow reads the contacts’ data from the Notion database.

    2. 02

      Message processing

      The AI model generates the email copy.

    3. 03

      Sending

      Brevo sends the email.

    4. 04

      Update

      The workflow updates the information in the relevant Notion records.

    Controls and limits

    A prototype and a system ready for real use are not the same thing. Before applying a flow like this to real contacts, you need:

    • human review of the generated copy, at least at the start;
    • error and retry handling, with alerts when a step fails;
    • sending limits and a searchable log of operations;
    • least-privilege permissions on connected accounts and protected credentials;
    • a check of the legal basis for the communications and a working unsubscribe.

    Transparency: this is not a solution built for a client. We do not claim revenue increases, savings or percentages we have not measured.

    What it shows and how it can evolve

    The project documents a first hands-on experience: designing a workflow, connecting APIs, using an AI model and managing a sequence of coordinated operations.

    The same logic (read data, process it, act, record) applies to other business processes, such as handling orders and documents. The next steps are the controls listed above and a real case to measure with before-and-after numbers.

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