When subscribed to the free plan of SAP Business Application Studio, you can only run one dev space at a time. A dev space is a development environment that contains the tools and runtimes for a specific development scenario. You can create up to two dev spaces with the free plan, but you can only have one dev space in the RUNNING state at a time. If you want to switch to another dev space, you need to stop the current one first12. This is one of the restrictions of the free plan, which is intended for trial and evaluation purposes. If you want to run more dev spaces simultaneously, you need to upgrade to a paid plan345. References:

• 1: Set Up SAP Business Application Studio | SAP Tutorials
• 2: Application Plans | SAP Help Portal
• 3: SAP Business Application Studio - Trial Account Restrictions
• 4: SAP Business Application Studio | SAP Help Portal
• 5: Dev Spaces in SAP Business Application Studio | SAP Blogs

To deploy an application from SAP Business Application Studio, you need to execute the build and deploy commands from the terminal. These commands will package your application into a multitarget application (MTA) archive and deploy it to the Cloud Foundry environment. You also need to select the target organization and space in Cloud Foundry before you can deploy, but this is not done from SAP Business Application Studio, but from the SAP Business Technology Platform cockpit or the Cloud Foundry command line interface (CLI). References:

• Build and Deploy | SAP Help Portal
• Deploy an Application | SAP Help Portal