The SAP Cloud Appliance Library supports automated provisioning and rapid deployment of SAP cloud applications to support rapid undertaking of projects with minimal setup and delay.
goolge are generic cloud provider but SAP CAL is solution specific for ALL SAP product's and they give ERP in cloud platform to give the customer to save money on their physical server investment and they give Software as a service related to SAP erp cloud based …
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You could do it yourself, or wait for your hosting provider to provide it, but that takes time.