Hello,
Welcome to Microsoft Q&A!
If it is a local WACK test, you could ignore the result. If you want to publish the app to the store, there will be an online WACK test when you upload the package to the submission. The store will only check the online WACK result. That's why the local WACK is optional.
Thank you.
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.