You will not be able to update an app while it is in Review or Approved status.
If you want to update the app while it’s in review, then you will need to cancel the app review.
If your app is in Approved status, you will need to wait for it to go live before editing it. If you have entered a publishing date in the future, you will need to cancel the submission to update it.
If the app is in Rejected or Suppressed status, the current version will be locked from editing, but you can create and submit an Upcoming Version of the app.
Occasionally an app can get stuck in the wrong status, preventing it from being updated. If you believe this is the case, please use the Contact Us form.
For more information, please see the App submission status reference and Update a published app guides: