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ROAS calculator using Google Ads API

Marketing Google Google API Api Adwords
Diego Rod Lop profile image

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Return on Ad Spend is a KPI that tells you whether your campaigns are delivering real business value. The problem is that because your data typically is stuck in various ad platforms–calculating ROAS is a time-consuming, manual task. Most marketing teams look at ROAS quarterly or monthly. However, the faster you can swap out an ineffective campaign or double down on a high-performing campaign, the faster you can improve the effectiveness of a given marketing channel. This can be instrumental to building out new ad channels, or even trying more types of experiments to give your product an edge in the market. Step by Step: **Before you start you need: From your Google Ads Account: Login Customer ID + Developer Token From your Google Cloud Console Project: OAuth Client ID + Client Secret Visiting https://developers.google.com/oauthplayground/ to generate a temporary access Token. 1. Fetching data from Google Adwords API: using the POST Request node. Below the configuration: - Connection URL with your Customer ID inside: https://googleads.googleapis.com/v10/customers/${CUSTOMER_ID}/googleAds:searchStream - Body request: Google Ads Query to obtain your desire data. - Request Headers: Developer token, Login-customer-id (aka Google ads Manager Account ID, and an Authorization token. 2. Obtaining Company Revenues by GAds campaigns using an Excel Reader node 3. Joining and Calculating ROAS: Joiner node + Math formula node. Math node formula to calculate ROAS: round(($revenues_last_30days$/$cost$)*100,0) 4. Output: you can choose the output that you prefer: Excel file, Tableau source, DB or Gsheets between many others.

External resources

  • KNIME blog article walking you through this worklow
  • How to obtain a developer token
  • OAuthPlayground
  • Google Ads API overall documentation
  • Google Ads API query builder

Used extensions & nodes

Created with KNIME Analytics Platform version 4.5.2
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    KNIME Base nodes Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.2

    knime
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    KNIME Database Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.2

    knime
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    KNIME Excel Support Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.2

    knime
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    KNIME Google Connectors Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.0

    knime
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    KNIME Javasnippet Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.0

    knime
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    KNIME JSON-Processing Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.0

    knime
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    KNIME Math Expression (JEP) Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.0

    knime
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    KNIME REST Client Extension Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.1

    knime
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    KNIME Tableau Integration Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.5.0

    knime
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