Creating a pool throws: "Pool quota for the account has been reached."

@Jakob Kuehl ,
It looks like you are trying to create a new pool in Azure Batch, but you are encountering the error "PoolQuotaReached". This error typically occurs when you have reached the maximum number of pools you can create in your Azure subscription.

There are several ways you can resolve this error:

1. Check your subscription's Batch service quotas: You can check the quotas for your Azure subscription by going to the Azure portal and navigating to the "Subscriptions" blade. From there, select your subscription and click on "Usage + quotas" to view your current quotas for the Batch service. If you see that you have reached the maximum number of pools allowed for your subscription, you will need to request an increase in your quotas by submitting a support request.
2. Check for existing pools: Make sure you do not have inactive pools in your subscription that you can reuse instead of creating a new one. You can view a list of all pools in the Batch service by going to the "Pools" blade in the Azure portal.
3. Check for an incorrect resource group or subscription: Make sure you create the pool in the correct resource group and subscription. Suppose you are unsure which resource group or subscription to use. In that case, you can view a list of available resource groups and subscriptions in the Azure portal by going to the "Resource groups" and "Subscriptions" blades, respectively.

I hope this helps! Let me know if you have any questions.