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Google Ads Performance Downloader

A Python script for downloading performance data and account structure from an MCC account using the Google Adwords API (v201809) to local files.

The mara Google ads performance pipeline can be, then, used for loading and transforming the downloaded data into a dimensional schema.

Resulting data

By default, it creates two data sets:

  1. Ad Performance consists of measures such as impressions, clicks, conversions and cost. The script creates one file per day in a specified time range:

     data/2015/03/31/google-ads/ad-performance-v4.json.gz
     data/2015/04/01/google-ads/ad-performance-v4.json.gz
    

    For the last 30 days, the script always re-downloads the files as data still changes (e.g cost or attributed conversions). Beyond that, files are only downloaded when they do not yet exist. Note: If you are using an attribution window larger than 30 days adjust the redownload_window config accordingly.

    The resulting JSON files contain arrays of dictionaries per ad, device and network:

     [
       {
         "Day": "2015-03-31",
         "Ad ID": "69450572293",
         "Device": "Computers",
         "Network (with search partners)": "Google search",
         "Active View viewable impressions": "0",
         "Avg. position": "1.0",
         "Clicks": "1",
         "Conversions": "0.0",
         "Total conv. value": "0.0",
         "Converted clicks": "0",
         "Cost": "590000",
         "Impressions": "4"
       },
       ..
     ]
    

    See Ad Performance Report for a documentation of the fields.

  2. Account Structure information. This file is always overwritten by the script:

     data/google-ads-account-structure-v4.csv.gz
    

    Each line contains one ad together with its ad group, campaign and account:

     ad_id         | 69450572293
     ad_name       | Online Veiling Gent
     ad_group_id   | 17837800573
     ad_group_name | Veiling Gent
     campaign_id   | 254776453
     campaign_name | BE_NL_GEN_Auction_City_{e}
     account_id    | 3470519330
     account_name  | BE_Dutch_Search
     attributes    | {"Target": "buyer", "Ad type": "Text ad", "Channel": "SEM", "Country": "Belgium", "Ad state": "disabled", "Language": "Dutch"}
    

    The attributes field contains a JSON representation of all labels of an ad or its parents in a {Key=Value} syntax. For example, if an account has the label {Channel=SEM}, then all ads below will have the attribute "Channel": "SEM".

    Note: Labels on lower levels overwrite those from higher levels.

Getting Started

Prerequisites

To use the Google Ads Performance Downloader you have to

  • consolidate all accounts of a company under a single manager account (aka. MCC),
  • not delete any ad, ad group, campaign or account (but disable them instead) so that you can relate past performances to structure data,
  • set up Oauth2 credentials to access the Adwords API. See Set up your OAuth2 credentials for the necessary steps.

Optionally, you can apply labels on all hierarchy levels for segmenting the account structure.

Installation

The Google Ads Performance Downloader requires:

Python (>= 3.6)
googleads (==15.0.2)
click (>=6.0)

The easiest way to install google-ads-downloader is using pip

pip install git+https://github.com/mara/google-ads-performance-downloader.git

In case you want to install it in a virtual environment:

$ git clone git@github.com:mara/google-ads-performance-downloader.git google_ads_downloader
$ cd google_ads_downloader
$ python3 -m venv .venv
$ .venv/bin/pip install .

Set up your OAuth2 credentials

Note: Should you not be able to see the images, then please deactivate your ad blocker

Create an oauth2_client_id and oauth2_client_secret. As described in Google Ads documentation.

Log into your Google Ads account and go to account settings: Google Ads account page

In the account settings you find the client_customer_id (account name aka MCC): Google Ads account preferences

Fill out the developer details in the Adwords API Center. This page also provides you with the developer_token:
Google Ads API Center

To get access level beyond the test account fill out the Adwords API Token application: Google Ads API Token application

Once approved, use the Google Adwords API to get an OAuth2 refresh token by calling (replace with your credentials):

$ refresh-google-ads-api-oauth2-token --client_customer_id 123-456-7890 \
--developer_token ABCDEFEGHIJKL \
--oauth2_client_id 123456789-abcdefghijklmnopqrstuvwxyz.apps.googleusercontent.com \
--oauth2_client_secret aBcDeFg

This prompts you to visit a URL where you need to allow the OAuth2 credentials to access the API on your behalf. Navigate to the URL in a private browser session or an incognito window. Log in with the same Google account you use to access Google Ads, and then click Allow on the OAuth2 consent screen:

Google Ads API consent screen

An authorization code is shown to you. Copy and paste it into the command line where you are running the refresh-google-ads-api-oauth2-token and press enter. The script should complete and display an offline oauth2_refresh_token:

The authorization code

Usage

To run the Google Ads Performance Downloader call download-google-ads-performance-data with its config parameters:

$ download-google-ads-performance-data --client_customer_id 123-456-7890 \
--developer_token ABCDEFEGHIJKL \
--oauth2_client_id 123456789-abcdefghijklmnopqrstuvwxyz.apps.googleusercontent.com \
--oauth2_client_secret aBcDeFg \
--oauth2_refresh_token 1/acbd-efghijklmnopqrstuvwxyz \
--data_dir /tmp/google-ads

All options:

$ download-google-ads-performance-data --help
Usage: download-google-ads-performance-data [OPTIONS]

  Downloads data. When options are not specified, then the defaults from
  config.py are used.

Options:
  --client_customer_id TEXT    The id of the manager account (MCC) that
                               contains all the accounts for which data should
                               be downloaded. Default: "123-456-7890"
  --developer_token TEXT       The developer token that is used to access the
                               Google Ads API. Default: "ABCDEFEGHIJKL"
  --oauth2_client_id TEXT      The Oauth client id obtained from the Google Ads
                               API center. Default: "123456789-abcdefghijklmno
                               pqrstuvwxyz.apps.googleusercontent.com"
  --oauth2_client_secret TEXT  The Oauth client secret obtained from the
                               Google Ads API center. Default: "aBcDeFg"
  --oauth2_refresh_token TEXT  The Oauth refresh token returned from the
                               refresh-google-ads-api-oauth2-token script.
                               Default: "1/acbd-efghijklmnopqrstuvwxyz"
  --data_dir TEXT              The directory where result data is written to.
                               Default: "/tmp/google-ads"
  --first_date TEXT            The first day for which data is downloaded.
                               Default: "2015-01-01"
  --redownload_window TEXT     The number of days for which the performance
                               data will be redownloaded. Default: "30"
  --output_file_version TEXT   A suffix that is added to output files,
                               denoting a version of the data format. Default:
                               "v4"
  --max_retries TEXT           How often try retry at max in case of 500
                               errors. Default: "5"
  --retry_backoff_factor TEXT  How many seconds to wait between retries (is
                               multiplied with retry count). Default: "5"
  --help                       Show this message and exit.