Bulk publish Pinterest Pins from Google Sheets with PinBridge

This workflow lets you publish Pinterest Pins in bulk from a Google Sheet using PinBridge as the publishing layer. It is designed for builders who want a practical, repeatable workflow instead of manually creating Pins one by one. The flow reads rows from Google Sheets, skips rows that are already complete, validates the required fields, downloads each image, uploads that image through PinBridge, submits the Pinterest publish job, and writes the result back into the same sheet. The goal is not just to publish. The goal is to publish in a way that is operationally clean, easy to review, and safe to run repeatedly. --- What problem this workflow solves A lot of Pinterest automation starts simple and then becomes messy very quickly: - content lives in a spreadsheet - images live in public URLs - someone has to manually copy title, description, destination URL, and image - nobody knows which rows were already sent - retries become dangerous because duplicate publishing becomes easy - batch operations become hard to track This workflow solves that by turning Google Sheets into a lightweight publishing queue. You prepare rows in a sheet, run the workflow, and the workflow does the following: 1. Reads rows from the Pins sheet 2. Ignores rows that are already marked as published 3. Verifies that the required values exist 4. Downloads the image from the row 5. Uploads the image to PinBridge 6. Submits the Pin publish job through PinBridge 7. Writes the result back to the sheet That gives you a simple but effective operational loop. --- Why PinBridge is used here This workflow is intentionally built around PinBridge rather than direct Pinterest API glue. PinBridge is the publishing layer in the middle. In this workflow, PinBridge is responsible for the Pinterest-facing publish operation while n8n remains the orchestration layer. That separation is useful because it keeps the workflow focused on: - reading inputs - validating data - sending publish jobs - tracking results instead of forcing the workflow to also become a Pinterest delivery engine. In other words: - Google Sheets is your input queue - n8n is your orchestration engine - PinBridge is your Pinterest publishing layer That is the architecture this template is meant to demonstrate. --- What you need before you begin You need four things before importing and running this workflow: 1. An n8n instance 2. A Google account with access to Google Sheets 3. A PinBridge account 4. A Pinterest account and board IDs already connected or available through your PinBridge setup You also need a Google Sheet that matches the expected format described below. --- Step 1: Create your PinBridge account Create your PinBridge account first. Head to pinbridge.io and click register at the top right corner. You can start with just a free account and upgrade later if you need more volume. You will need two things from PinBridge for this workflow: - a PinBridge API key - the connected Pinterest account you want to publish to. Head to App > Accounts > Connect > Give Access. --- Step 2: Create a PinBridge API key Inside PinBridge, create an API key that will be used by the n8n workflow. To create a new key, go to App > API Keys > Create. Make sure that you: - give it a clear name such as n8n-bulk-publish - store it somewhere secure - do not hardcode it into random HTTP nodes - use the PinBridge n8n credential field so it stays reusable and secure After the key is created, go into n8n and create the PinBridge credential used by the PinBridge nodes in this workflow. --- Step 2.5: Install the PinBridge n8n community node Before this workflow can run, your n8n instance must have the PinBridge community node installed. This workflow uses the following PinBridge nodes: - Upload Image to PinBridge - Publish to Pinterest If the PinBridge node is not installed, these nodes will either be missing or show as unknown after import. Install from the n8n UI If your n8n instance allows community nodes: 1. Op