The attempt to validate the provided endpoint resource failed - azure

Question

Trying to create a new azure eventgrid endpoint subscription based on the code in the Microsoft tutorial here errors:
az eventgrid event-subscription create --source-resource-id $topicid --name eventsubscriptionname --endpoint-type storagequeue --endpoint $queueid --expiration-date "2020-05-15"
Deployment failed. Correlation ID: xxxx. The attempt to validate the provided azure endpoint resource:xxxx failed.
The tutorial says to ensure the account has write access to the storage, which it does, I am the owner. All properties in the command have valid values and I am executing from the azure cli.
What could I be doing wrong?

Answer 1

That's weird... I tried on my side and I have the expected result using the following commands :
$resourcegroup="your resource group"
$storagename="your storage name"
$queuename="your queue name"
$topicname="your topic name"
$subscriptionname="your subscription name"
$storageid=az storage account show --name $storagename --resource-group $resourcegroup --query id --output tsv
$queueid="$storageid/queueservices/default/queues/$queuename"
$topicid=az eventgrid topic show --name $topicname -g $resourcegroup --query id --output tsv
az eventgrid event-subscription create --source-resource-id $topicid --name $subscriptionname --endpoint-type storagequeue --endpoint $queueid --expiration-date "2020-05-15"
I sued PowerShell version 5.1.18362.752 and AZ CLI version 2.5.1