In the era of digital transformation, organisations frequently face the challenge of integrating modern cloud solutions with existing on-premise systems. SAP Cloud Connector (SCC) was created precisely to address this need, offering a secure and efficient bridge connecting SAP Business Technology Platform (BTP) with internal corporate systems.
What is SAP Cloud Connector?
SAP Cloud Connector is a tool that enables secure communication between applications and services running in the SAP BTP cloud and systems installed locally within an organisation’s infrastructure. It is a key element of hybrid architecture, allowing organisations to migrate to the cloud gradually while retaining the value of their existing IT investments.
Cloud Connector operates as an intermediary agent, installed within the on-premise environment, which initiates and maintains a secure tunnelled connection to the SAP BTP platform.
Key features and benefits
Security first
Security is a priority in the SAP Cloud Connector architecture:
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Connection initiation via outbound connection: The connection is always initiated from the on-premise side, eliminating the need to open inbound ports in the firewall.
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TLS/HTTPS tunnelling: All communication is encrypted using TLS/HTTPS protocols.
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Granular access control: The administrator can precisely define which on-premise systems and resources are accessible to cloud applications.
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Resource mapping: The ability to map internal host addresses to virtual addresses, concealing the actual topology of the corporate network.
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Support for X.509 authentication: Advanced certificate-based authentication mechanisms.
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Audit and logging: Extensive monitoring and activity-logging capabilities.
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Flexibility and scalability
SAP Cloud Connector offers flexible deployment options:
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Multiple deployment tiers: From a basic installation for development environments to advanced high-availability configurations for production systems.
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Support for multiple SAP BTP subaccounts: A single Cloud Connector can serve multiple SAP BTP subaccounts and regions.
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Support for various protocols: Support for RFC, HTTP(S), LDAP, TCP/IP and others.
System architecture
SAP Cloud Connector operates on a reverse proxy model. Here is a simplified outline of how it works:
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Cloud Connector is installed within the corporate network and establishes a secure, outbound connection to SAP BTP.
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The administrator defines which on-premise systems are made available to which cloud application or service.
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A cloud application or service seeking access to an on-premise resource contacts the Connectivity service in SAP BTP.
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The Connectivity service forwards the request through the established tunnel to the relevant Cloud Connector.
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Cloud Connector validates the request and forwards it to the target on-premise system.
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The response is returned along the same path.
Use cases
SAP Cloud Connector proves effective in a range of hybrid scenarios:
Data integration
It enables cloud applications to access data stored in on-premise systems, such as SAP ERP, SAP S/4HANA or third-party databases.
Cloud extensions
It allows organisations to build innovative cloud solutions that extend the functionality of existing local systems.
Gradual cloud migration
It supports an evolutionary cloud migration strategy, in which individual components are moved in stages.
Hybrid environments
Ideal for organisations that, for regulatory, performance or business reasons, must keep some systems on-premise while benefiting from the cloud.
Challenges and solutions
Implementing SAP Cloud Connector involves certain challenges:
Certificate management
Rigorous management of certificates and their expiry dates is required. SNOK specialists recommend implementing automated notifications and certificate rotation procedures.
Performance
For intensive communication between environments, infrastructure should be sized appropriately, and a high-availability configuration should be considered.
Advanced security configuration
For organisations with high security requirements, configuring advanced settings such as Principal Propagation requires specialist expertise.
The future of hybrid integration
SAP continues to develop the capabilities of Cloud Connector, adapting it to evolving business needs. The latest trends include:
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Simplified deployment in containerised environments
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Extended integrations with security solutions such as SAP Cloud Identity Services
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Improvements in monitoring and diagnostics
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Increased throughput and performance optimisation
Insights from SNOK specialists
SNOK specialists have for years successfully implemented and managed hybrid environments based on SAP Cloud Connector. Their experience shows that:
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Proper initial architecture is critical to the long-term success of hybrid solutions.
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Redundant Cloud Connector deployments in a high-availability configuration are essential for production systems.
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Regular updates are important for security reasons and to access new features.
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Monitoring and managing Cloud Connector should be part of overall IT operational processes.
The SNOK team has also developed best practices regarding:
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Optimising Cloud Connector performance in large environments
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Managing certificates and key rotation
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Integration with existing security solutions
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Automating deployments and configuration in a DevOps context
“The role of SAP Cloud Connector in the modern business environment continues to grow steadily. As organisations increasingly adopt hybrid architectures combining cloud solutions with on-premise systems, secure and reliable integration becomes a critical element of IT strategy. SAP Cloud Connector, although often underappreciated, is a fundamental component of this architecture - a gateway between two worlds that must be properly secured and managed. Since our founding, SNOK has specialised in designing, implementing and maintaining such hybrid environments. Our experience with dozens of clients shows that properly configuring and securing Cloud Connector has a direct impact not only on the security of the entire SAP ecosystem, but also on the reliability of business processes. This is not merely an infrastructure component - it is a strategic element that requires a professional approach.”- emphasises Jarosław Zdanowski, Partner at SNOK*
Summary
SAP Cloud Connector is a fundamental element of the SAP BTP ecosystem, enabling organisations to build genuinely hybrid architectures. By combining security, flexibility and ease of use, the tool allows enterprises to benefit from cloud innovation while continuing to leverage their existing investments in on-premise infrastructure.
The experience of SNOK specialists confirms that a properly implemented and managed SAP Cloud Connector is a key success factor in digital transformation strategies based on SAP solutions.