All queues have been created.
I thought that "has" was the right choice, but I changed it to "have", because it sounds better. Although I dont know the right choice, so if someone can explain the right choice and why its, I'll be grateful.
Have is the correct choice because "all queues" implies there are multiple queues. Have is the plural form of has, and using "has" would not work because it only works for singular nouns, such as
"The queue has been created"