Hello @Treasury APAC Kimberly-Clark,
Thank you for reaching out, and welcome to the Docusign Community! I appreciate you bringing your question to this Community. We are absolutely delighted to have you here and can't wait to share our knowledge with you.
A signer may not be able to change their signature due to several reasons, including: the signer not having an active DocuSign account, the recipient name being locked by the sender, or the signature being locked due to using specific features like the Mobile App, in-person signing, or certain signature types.
You may refer to this link for more information: Why Can't I Change My Signature?
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Best regards,
Jenny | Docusign Community Moderator
"Select as Best" below if you find the answer a valid solution to your issue.