Freedom’s S Series is a collection of SAP integration templates designed for use with ETL tools. It helps organizations reuse common integration processes when connecting SAP S/4HANA Cloud Public Edition with surrounding systems, supporting more efficient and standardized integration development.

SAP integration involves more than simply mapping data fields. Teams also need to review SAP API specifications, design integration processes, verify functionality, and perform testing. When these activities are started from scratch for every project, the same types of integration work must be repeated again and again.

S Series provides reusable SAP-side integration assets, allowing development teams to spend more time on company-specific business rules and data requirements.Reuse common integration processes and focus development resources on business-specific requirements. This is the core concept behind S Series.

In this article, we explain the role of S Series, how PARK and MART tables support integration, the business areas covered by the available assets, and a model estimate of potential effort reduction.

What Is S Series? Understanding the Role of ETL Tools and Templates

S Series is a collection of reusable templates for common integration processes between SAP and surrounding systems.

The ETL tool handles data extraction, transformation, and transfer. S Series provides reusable integration assets that serve as a foundation for building those processes.

For example, when transaction data from a surrounding system needs to be posted to SAP, several steps may be required, including transforming the data into an SAP-compatible format, calling the appropriate SAP API, and confirming the processing result.

By using S Series assets as a starting point, development teams can reuse common processing logic while adapting the integration to project-specific requirements.

S Series is not a standalone tool that runs inside SAP. It is a template product designed to work together with a supported ETL tool and integration environment.

Even when templates are used, organizations still need to configure connections, map data fields, define business rules, and perform testing based on the target systems and requirements.

Connecting SAP and Surrounding Systems with PARK and MART Tables

In an S Series integration architecture, data is exchanged between SAP and surrounding systems through PARK tables and MART tables hosted in SQL Server.

Surrounding systems read from or write to these SQL Server tables, while SAP API processing is handled by integration flows running in the ETL environment. This reduces the need for each surrounding system to implement its own SAP API connection logic.

PARK Tables: Holding Data Before It Is Posted to SAP

PARK tables store data received from surrounding systems before it is posted to SAP.

A typical inbound flow looks like this:

Surrounding system → PARK table → ETL integration flow → SAP standard API → SAP

The data is validated before being sent to SAP. Records with errors or failed processing can be retained for correction and reprocessing.

Keeping the original source data also helps support traceability and reprocessing when needed.

MART Tables: Organizing SAP Data for External Consumption

MART tables store data retrieved from SAP in a structure that is easier for surrounding systems to consume.

A typical outbound flow looks like this:

SAP → ETL integration flow → MART table → Surrounding system

For example, sales order header and item information can be organized into relational tables that external applications or analytics tools can query through SQL.

Instead of having every application call SAP APIs directly each time data is needed, surrounding systems can read from MART tables. This helps centralize access to SAP data.

PARK and MART tables are SQL Server tables in the integration environment. They do not provide direct access to the underlying SAP database.

The update frequency of MART tables should also be designed according to business requirements and the level of data freshness needed.

67 Integration Assets Covering a Broad Range of Business Areas

S Series includes 67 integration assets in total: 35 inbound assets for writing data to SAP and 32 outbound assets for retrieving data from SAP.

Inbound and outbound are defined from the SAP perspective.

The portfolio covers more than basic customer and material data. It also includes transaction posting, analytics-related data extraction, master data creation, and manufacturing and planning scenarios.

In this way, S Series is designed to support SAP integration across multiple business domains rather than a single data flow.

However, supported operations and load methods vary by asset. Organizations should confirm whether a given asset supports the required create, update, read, full refresh, delta, or upsert behavior.

The available assets and their supported scope should be confirmed based on the specific integration requirements.

Standardizing Monitoring, Retry, and Error Handling

Running SAP integrations reliably requires more than moving data between systems. Teams also need to monitor execution, investigate failures, and recover from errors.

Freedom’s integration accelerator architecture combines business-specific integration assets with reusable functions for SAP connectivity and operational control.

Standardized SAP API Connectivity and Integration Processing

Reusable SAP API handling, inbound frameworks, and outbound frameworks help reduce the need to repeatedly implement the same foundational SAP integration logic.

Monitoring and Logging

Monitoring and logging support visibility into integration execution and help teams investigate issues when they occur. For production integration environments, it is important to understand not only individual flows but also the status of the broader integration landscape.

Error Handling, Retries, and Transaction Control

Reusable error handling, retry logic, and transaction control can support recovery and reprocessing when integration failures occur. By combining these shared functions with reusable business assets, development teams can apply more consistent design patterns across SAP integrations. The exact scope of shared functions included in a particular implementation depends on the selected architecture and configuration.

Supporting Reduced Effort in Design, API Verification, and Testing

S Series is intended to improve not only integration-flow development, but also activities such as reviewing SAP APIs, designing integration methods, and validating behavior. Freedom’s model estimate compares effort with and without S Series across three areas where reuse can have a significant impact:

API integration design, detailed verification of SAP APIs, and SAP integration testing

The model assumes 20 inbound interfaces and 10 outbound interfaces, for a total of 30 interfaces.

Under these assumptions, the estimated effort for the targeted activities decreases from 80 person-weeks to 40 person-weeks, representing an approximately 50% reduction.

This is a model estimate based on defined assumptions, not a measured result from a specific customer project. Actual effort will vary depending on the selected assets, business requirements, additional development, and testing scope.

Person-weeks represent total work effort. This does not mean that total project cost or implementation duration will automatically be reduced by 50%.

Even when templates are used, effective design and testing still require knowledge of the ETL tool, SAP, and SAP APIs.

Designed for SAP Implementation Partners and Enterprise Development Teams

S Series is intended not only for companies using SAP, but also for SAP implementation partners and enterprise IT or architecture teams working with SAP S/4HANA Cloud Public Edition.

For SAP Implementation Partners

By reusing common connectivity and operational components, implementation teams can spend more time on customer-specific business processes and business logic. Standardized integration patterns can also support Clean Core-oriented architecture and Side-by-Side development approaches. However, adopting reusable templates alone does not automatically guarantee that an overall solution meets every architectural principle.

For Enterprise IT and Development Teams

S Series can reduce the need to build separate SAP API handling for every surrounding system and make data exchange and operations easier to standardize. For example, in an architecture where Salesforce acts as the front-end system and SAP serves as the core ERP platform, clearly defining system responsibilities and using a consistent integration approach becomes especially important. S Series can provide a reusable foundation for the SAP side of that integration architecture.

What to Confirm Before Adopting S Series

Before using S Series, organizations should review both the available integration assets and their own business requirements.

Target System Environment

Confirm the relevant SAP environment, required APIs, permissions, supported ETL tool, SQL Server configuration, and other technical components.

Data and Processing Scope

Define which business data needs to be integrated and whether the required operation is creation, update, retrieval, or another type of processing.

Data Ownership and Update Timing

Clarify which system is the system of record, when data should be updated, and how fresh the data needs to be for surrounding systems.

Error Handling and Operational Responsibilities

Define who monitors processing results, who corrects errors, and who performs reprocessing.

It is also important to distinguish between functionality provided by reusable templates and shared integration components, and functionality that still needs to be designed or developed for the specific project.

For organizations connecting multiple systems over time, it is also worth considering the broader role of a data integration platform rather than managing each connection independently.

Conclusion: Reuse Common SAP Integration Processes and Focus on Business Value

Connecting SAP with surrounding systems requires many different activities, including API connectivity, data transformation, validation, testing, monitoring, and error handling.

Freedom’s S Series supports the reuse of common SAP integration processes through templates designed for ETL environments. Combined with PARK and MART tables and reusable operational components, it helps reduce the need to rebuild the same integration foundations for every project.

The value of S Series is not simply in connecting systems.

Its purpose is to reuse common SAP-side integration processes so development teams can focus more of their resources on company-specific business requirements and transformation initiatives.

If your organization or SAP implementation team is considering integration between SAP S/4HANA Cloud Public Edition and surrounding systems, contact Freedom to discuss where S Series can be applied and what project-specific configuration may be required.