StoreKitMBS, verifyAppReceipt failed on macAddress

Targets iOS
1

Hello,

i try to implement Subscription in App.

But i failed, when a want to get the ExpirationDate.

My code

try
  Var r as AppReceiptMBS = AppReceiptMBS.bundleReceipt
  
  if r <> Nil then
    
    r.setAppleRootCertificate AppleIncRootCertificate
 
    Var a as new AppReceiptVerificatorMBS

    if a.verifyAppReceipt then
      L.text= "Valid until : "+r.expirationDateTime.SQLDate
    else
      L.text= "MAS Receipt verification failed: " + a.FailReason 
    end if
  else
    LabelAbonnement.text= "No valid subscription"
    
  end if
  
catch n as NilObjectException
  return
end try

In-app purchase are OK and working . I get my list of purchase item. If i try to resubscribe, i’ve a message box tell me i have a valid subscription.

But… when i want to get the ExpirationDate, i got a message : “MAS Receipt verification failed : Failed to get MAC address”.

Test with compile app, transfered to a iPad mini 6th gen and a iPhone 13 mini. Same error.

In app buy with a sandbox account.