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.

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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.