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PostOnce can copy your Pins to other platforms and publish image and video Pins from other platforms.

Connect Pinterest

On Accounts, click Connect Pinterest. Pinterest shows what PostOnce can do; click Give access.
Pinterest's Authorize app screen listing board and Pin permissions with a Give access button

Pinterest's authorization screen

Pinterest as a source

  • PostOnce checks Pinterest for new Pins every 10 minutes.
  • A deleted or private Pin is skipped with “This Pin was deleted or made private.”

Publishing to Pinterest

Pinterest needs an image or video. Text-only posts are skipped. Title: the source’s title, or else the start of the caption. Board: in Create Post you choose the board. Workflows don’t have a board setting. PostOnce uses your saved default board, then a board named “PostOnce”, then your first board. If you have no boards, it creates a public board named “PostOnce”. PostOnce creates the cover image for video Pins. If Pinterest rejects images of different shapes, PostOnce posts the first image on its own.

Pinterest errors

Still stuck?

Search this help center with ⌘ K, or email support@postonce.to from the address you use for PostOnce. Include the platform, the approximate time, and the exact message you saw. Never send passwords, access tokens, API keys, or card details. Something missing from PostOnce? Request a feature or check the roadmap.
Last modified on October 7, 2026