Import PayPal Transactions to Google Sheets with Apps Script

Importing PayPal transactions into Google Sheets can turn a chaotic list of payments into a clean, searchable, and automatically updated report. Whether you run an e‑commerce store, manage a nonprofit, or simply track personal income, having every sale, subscription, and donation appear in a spreadsheet saves countless hours of manual entry. In this guide we will walk through the entire process: from creating a PayPal REST API credential, to setting up a Google Sheet with a custom Apps Script, and finally pulling in standard transactions, recurring subscriptions, and donation records. By the end, you’ll have a reusable script that refreshes your data on demand or on a schedule, giving you real‑time insight without ever leaving Google Workspace.

Setting Up PayPal API Access

Before any data can be pulled, PayPal must trust the script that will request it. Follow these steps:

• Create a PayPal developer account at developer.paypal.com and navigate to My Apps & Credentials.
• Click “Create App”, give it a descriptive name (e.g., “Google Sheets Export”), and select the appropriate environment (sandbox for testing, live for production).
• Take note of the Client ID and Secret. These will be used to generate an OAuth 2.0 access token.
• Under Permissions, enable Transaction Search and Subscription Management. If you process donations, also enable Donations if it appears.

Store the credentials securely—preferably in the script’s PropertiesService so they are not exposed in the code itself.

Creating the Google Sheet and Apps Script Project

Open a new Google Sheet that will become your PayPal dashboard. Then:

• From the menu choose Extensions → Apps Script. This opens the script editor linked to the sheet.
• Rename the project (e.g., “PayPal‑Import”).
• In the Code.gs file, add a setup() function that creates a custom menu:

function onOpen() {
  SpreadsheetApp.getUi().createMenu(‘PayPal’)
    .addItem(‘Refresh Transactions’, ‘importPayPalData’)
    .addToUi();
}

This menu lets non‑technical users trigger the import with a single click. Remember to set the script’s OAuth scopes to include https://www.googleapis.com/auth/spreadsheets and https://www.googleapis.com/auth/script.external_request.

Fetching Standard Transactions

The PayPal /v1/reporting/transactions endpoint returns a paginated list of all payments. A typical request looks like:

GET https://api.paypal.com/v1/reporting/transactions?start_date=2024-01-01T00:00:00Z&end_date=2024-01-31T23:59:59Z

In Apps Script, use UrlFetchApp.fetch() with the bearer token obtained from the OAuth client credentials flow:

function getAccessToken() {
  var credentials = PropertiesService.getScriptProperties();
  var payload = ‘grant_type=client_credentials’;
  var options = {
    method: ‘post’,
    payload: payload,
    headers: {
      ‘Authorization’: ‘Basic ‘ + Utilities.base64Encode(credentials.getProperty(‘CLIENT_ID’) + ‘:’ + credentials.getProperty(‘SECRET’))
    },
    muteHttpExceptions: true
  };
  var response = UrlFetchApp.fetch(‘https://api.paypal.com/v1/oauth2/token’, options);
  return JSON.parse(response.getContentText()).access_token;
}

Loop through the pages, extract fields such as transaction_id, amount, status, and payer_email, and write them to the sheet with appendRow(). Use batch updates for performance when dealing with thousands of rows.

Handling Recurring Subscriptions and Donations

Recurring payments and one‑off donations are stored differently in PayPal’s API. Subscriptions are accessed via /v1/billing/subscriptions, while donations appear as regular transactions but carry a transaction_type of “DONATION”.

To capture both in a single import:

• First pull the standard transaction list as described above.
• Next, request active subscriptions with GET /v1/billing/subscriptions?status=ACTIVE. For each subscription, record the plan_id, start_date, and the most recent billing_amount.
• Merge the two datasets in the sheet, adding a column “Source” that flags rows as “Standard”, “Subscription”, or “Donation”.

When a donation arrives, its custom_id field often contains a campaign identifier. Capture this value to enable campaign‑level reporting. For recurring donors, you can also calculate lifetime value by summing all successful billing cycles linked to the same subscriber_id.

Automating and Troubleshooting the Workflow

Manual clicks are fine for occasional checks, but most businesses benefit from a timed trigger. In Apps Script:

ScriptApp.newTrigger(‘importPayPalData’)
  .timeBased()
  .everyDays(1)
  .atHour(2)
  .create();

This schedules a daily refresh at 2 AM, when the sheet is least likely to be in use. To handle API limits or temporary failures, wrap the fetch calls in try/catch blocks and log errors to a hidden “Log” sheet. If the access token expires, the getAccessToken() function will automatically request a new one on the next run.

Finally, audit the imported data regularly. Use conditional formatting to highlight transactions with a status other than “COMPLETED”, and set up a simple pivot table that summarizes revenue by month, product, or donor source. This turns raw API data into actionable insight without additional tools.

By following these steps—creating secure PayPal credentials, wiring a Google Sheet with a custom Apps Script, pulling both standard and specialized transaction types, and automating the process—you gain a powerful, low‑cost reporting engine. The solution scales from a handful of monthly donations to high‑volume e‑commerce operations, while keeping all data inside the familiar Google Workspace environment. With the script in place, you’ll spend less time copying numbers and more time analyzing trends, optimizing campaigns, and making data‑driven decisions.