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Sign a Signature Request with a signature image

post https://api-sandbox.yousign.app/v3/signature_requests//signers//sign

Sign a Signature Request on behalf of a given Signer, and provide a signature image for the Signer.

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Sign a Signature Request
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Use this endpoint if you are integrating your own signing flow (Signers won't go through Yousign's pre-made signing flow).

Related guide: Building your own signing flow

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To use this endpoint, you must match the following conditions:

  • You are in free API Trial period or you are on a SCALE plan
  • The Signature Request delivery_mode must be set to none
  • The Signature Request must not have any Approver
  • The Signature Request must not have the parameter signers_allowed_to_decline set to true
  • The signature level must be "Simple eSignature".
  • No Signer Fields can be used, except the Signature Field
  • The Signature Request must not have Signer Document Request
  • The Signature Request must not have Signer Consent Request
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