You have already obtained and validated your travel document for the USA and, as the latter is still valid, you want to update it before making a new trihe United States ?
The ESTA form includes questions about your identity (contact information, first and last name) but also information related to your trip, your health and your behavior. In two years, this information may change and the information on your ESTA may no longer reflect your new situation.
What is your situation ?
Have you completed your ESTA authorization and are you about to pay?
You can still go back and update all your information, with the exception of your passport number and the country that issued the passport.
You have filed an ESTA application and it has been accepted
In this context, your information can not be updated on your ESTA form. However, both your email address and US address may still be subject to change.
You have made a mistake in your personal details, the data of your passport have changed or expired
You only have one solution: renew a new request knowing that each request is associated with new processing fees.
Do not worry anymore, save time: entrust your request for ESTA to professionals of US administrative formalities: collection and verification of your information, seizure and submission of the form, follow-up of the file.