Final answer:
The disadvantage of having a cloud-based ERP system is the lack of enhanced control over the physical infrastructure, as it is managed by the cloud service provider, not the ERP system's users.
Step-by-step explanation:
When considering the disadvantages of a cloud-based ERP system, it's important to identify which of the listed advantages does not actually pertain to ERP in the cloud. A common misconception is that cloud ERP systems offer enhanced control over the physical infrastructure, which is not true, given that the infrastructure is managed by the cloud service provider. Other advantages typically associated with cloud-based ERP systems include cost savings due to reduced need for on-site hardware, scalability to meet fluctuating demand, and flexibility in terms of access from any location with an internet connection.
However, one should not confuse increased accessibility with increased control over infrastructure. Thus, the correct answer would be that having your ERP system in the cloud does not provide enhanced control over the physical servers, as the management of these servers is in the hands of the cloud provider.