Canceling requests with Dropbox Sign API

Updated Sep 26, 2025

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When you click URI POST /signature_request/cancel/[:signature_request_id], that will queue a signature request to be cancelled. In order to be canceled successfully, the signature must be unsigned by any party, and it must've been sent successfully.
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Important: When you cancel a signature request, it still counts against your allotted signature requests each month within your billing cycle.

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