You can withdraw your application so long as at least one of your witnesses has yet to complete the witnessing:

1. Log in to my cpf digital services using your Singpass at cpf.gov.sg/MyActivities.
2. In transaction details, click on “withdraw this application” and confirm your intent to withdraw the application.

Please note that after you withdraw your online nomination, your existing nomination status remains unchanged. If both your witnesses have completed their witnessing and you wish to make a new nomination, you can submit one here.