Check the instance type and zone availability

• The zone may not have enough free capacity for the requested VM family or size.

• This can happen during regional shortages, maintenance events, or demand spikes.
  
  

Let Ocean or Elastigroup try replacement zones automatically

• Ocean or Elastigroup evaluates other zones in your allowed configuration.

• If a compatible instance type is available elsewhere, the platform launches the VM in that zone.
  
  

Optional: Expand your allowed instance types or zones

• If you want to improve reliability, add more VM families or zones to your group configuration.

• More flexibility increases the chance of finding available capacity during constrained periods.