You enable a customer-specific field to be available for UIs and reports relevant for the same business context in the Custom Fields app. The Custom Fields app allows you to create and manage custom fields for business objects in SAP S/4HANA Cloud, public edition. You can define the properties of the custom fields, such as the label, data type, length, and default value. You can also specify the UIs and reports where you want the custom fields to appear, and the business context that determines the visibility and authorization of the custom fields. The Custom Fields app also enables you to activate the custom fields and generate the corresponding CDS views and OData services for consumption by other applications. References = Using the Key-User In-App Extensibility Tools in SAP S/4HANA Cloud Public Edition, Custom Fields and Logic

A public cloud is a type of cloud computing in which a third-party service provider makes computing resources available to users over the public Internet. Some characteristics of public cloud are:
Multi-tenant server: Public cloud uses shared infrastructure, where multiple users or organizations can access the same resources, such as compute, storage, or applications. The data and applications of each user are isolated and secured from others. This allows for efficient utilization of resources and scalability.
Lower total cost of ownership: Public cloud reduces the upfront and operational costs of IT, as users do not need to purchase, install, or maintain hardware or software. Users only pay for the resources they use, and can benefit from the economies of scale and continuous innovation of the cloud service provider.
References = What Is a Public Cloud? | Google Cloud, What is Public Cloud | IBM

SAP Business Application Studio and SAP Build are two tools that enable customers to develop their own custom applications and integrate them with SAP S/4HANA Cloud Public Edition. SAP Business Application Studio is a cloud-based development environment that offers both low-code and full-stack development capabilities. It supports various SAP technologies and frameworks, such as SAP Fiori, SAPUI5, SAP Cloud Application Programming Model, and SAP Cloud SDK. SAP Build is a cloud-based prototyping and user research tool that helps customers to design and test user interfaces for their applications. It provides a drag-and-drop interface, a library of UI components, and integration with SAP Web IDE and SAP Fiori Launchpad. Both tools are part of the SAP Extension Suite, which provides a range of services and capabilities to extend SAP applications and processes. References = Create a SAP Fiori App and Deploy it to SAP S/4HANA Cloud > Create a SAP Fiori App and Deploy it to SAP S/4HANA Cloud. Create a SAP Fiori App and Deploy it to SAP S/4HANA Cloud > Create a SAP Fiori App and Deploy it to SAP S/4HANA Cloud. Low-code/No-code | SAP Developers.

Industry cloud solutions are cloud-based solutions that address specific industry needs and challenges. They are designed to complement and extend the capabilities of SAP S/4HANA Cloud Public Edition and other SAP solutions. You can find industry cloud solutions on the SAP Store, which is the online marketplace for SAP and partner offerings. On the SAP Store, you can browse, discover, try, buy, and deploy industry cloud solutions that suit your business needs. References = SAP S/4HANA Cloud Public Edition, SAP Learning, SAP Store

You can launch the Cloud Integration Automation Service (CIAS) through the following applications:
SAP for Me: SAP for Me is your digital companion along your whole SAP customer journey. It provides you with full transparency into your SAP product portfolio, including your licenses, systems, users, orders, contracts, and invoices. You can also access the CIAS from the SAP for Me mobile app.
SAP Cloud ALM: SAP Cloud ALM is a cloud-based application lifecycle management solution that helps you implement, operate, and optimize your cloud solutions. It offers various tools and services to support your end-to-end business processes, such as process management, task management, test management, and integration monitoring. You can access the CIAS from the SAP Cloud ALM launchpad. References = SAP for Me - Apps on Google Play, SAP for Me - Your digital companion along your whole SAP customer journey, The Future of Our Customer Relationships with SAP for Me | SAP News, SAP for Me: New Entry Point for SAP Support | SAP News Center, [SAP Cloud ALM],
[SAP Cloud ALM - Overview], [SAP Cloud ALM- Application Lifecycle Management], [Cloud Integration Automation Service | SAP Help Portal], [What Is Cloud Integration Automation Service? | SAP Help Portal]