I used below code to add menu it's working in one machine but not working on another machine
ISubscriptionMsgSetRequest _menuSet = GetSubscribeMsgRequest();
IUIExtensionSubscriptionAdd query = _menuSet.AppendUIExtensionSubscriptionAddRq();
query.SubscriberID.SetValue(SUBSCRIBER_ID.ToString("B"));
query.COMCallbackInfo.AppName.SetValue(AppName);
I am not getting any issue, actually i am not clear with the code
i have taken code from this url
check all steps one by one
Run your code using administrator account
When you will run you code check whether response status is 0? - if it is 0 then continue else check status message and update in your question
check whether below code is present InformManager.SubscribeToQBUIExtensionEvents(handleMenuEvents); ATTACHED EVENT OF MENU CLICK
After successful execution open Quickbook as administrator
If you have any concern regarding Quickbook feel free to ask.