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Unify Spend Management with Core ERP: SAP Concur & SAP S/4HANA Integration

Automate Expense, Invoice, and Travel Data Flow for Real-time Financial Control and Accelerated Close

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The Challenge

The Disconnected Reality of Spend Management and ERP

Managing expenses, invoices, and corporate card transactions often involves disjointed processes, manual data entry, and delayed reconciliation between SAP Concur and SAP S/4HANA. This creates significant operational inefficiencies, financial inaccuracies, and compliance risks.

  • Manual data entry of expense reports and invoices into S/4HANA.
  • Delayed visibility into corporate spend and outstanding liabilities.
  • Challenges in reconciling corporate card transactions with employee expenses.
  • Inconsistent employee and vendor master data across systems.
  • Time-consuming financial close processes due to reconciliation efforts.
  • Increased risk of policy violations and potential fraud due to lack of real-time checks.
Integration Diagram
Solution Illustration
The Solution

Seamless Spend-to-ERP: The SAP Concur & SAP S/4HANA Integration Solution

Our integration solution provides a unified, intelligent, and automated bridge between SAP Concur and SAP S/4HANA, powered by a modern Integration Platform as a Service (iPaaS). It ensures accurate, real-time data flow for all your spend management processes, transforming financial operations and delivering complete visibility.

  • Automated expense report posting to S/4HANA General Ledger.
  • End-to-end invoice processing from Concur to S/4HANA Accounts Payable.
  • Real-time corporate card transaction reconciliation.
  • Bi-directional synchronization of employee and vendor master data.
  • Customizable approval workflows and policy enforcement.
Implementation Timeline

Go live with SAP Concur + SAP S/4HANA in as little as 2–4 weeks.

A proven, repeatable implementation approach that minimizes risk while getting your team to value quickly.

1

Access Enabled

Secure connections established to both SAP Concur and SAP S/4HANA, with credentials and environments confirmed.

2

Configuration & Mapping

Field mappings, business rules, and workflows configured using visual tools and pre-built templates.

3

Go Live

Launch production-ready integration with monitoring, alerting, and support in place—typically within 2–4 weeks.

Time to Value

2–4 weeks

Typical implementation window from access granted to production go-live for most SAP Concur + SAP S/4HANA deployments.

Project Phases

Discovery
Configure & Map
Validate
Launch

Engagement Model

Guided by Clarity experts with your team involved at key milestones.

Comprehensive Solution Details

  • Automated expense report posting to S/4HANA General Ledger.
  • End-to-end invoice processing from Concur to S/4HANA Accounts Payable.
  • Real-time corporate card transaction reconciliation.
  • Bi-directional synchronization of employee and vendor master data.
  • Customizable approval workflows and policy enforcement.
  • Comprehensive error handling and data reconciliation.
  • Event-driven architecture for instant updates.

Deep Dive: SAP Concur & SAP S/4HANA Integration Architecture

Our integration leverages a modern iPaaS as the central nervous system, orchestrating sophisticated data flows between SAP Concur and SAP S/4HANA. This architecture ensures high performance, security, and extensibility, moving beyond traditional point-to-point connections.

Data Flow Steps

Connectors & Authentication: Securely establish connections to SAP Concur via OAuth 2.0 and to SAP S/4HANA via OAuth 2.0 (for OData) or X.509 certificates.

Event-Driven Triggers: Configure webhooks in Concur (e.g., Expense Report Approved, Invoice Approved) or leverage iPaaS polling with change detection for S/4HANA events.

Data Retrieval: Call Concur APIs (e.g., `/v3.0/expense/reports`, `/v3.0/invoice/invoices`) to fetch detailed transaction data and associated entities.

Data Transformation & Mapping: Utilize the iPaaS's visual mapping canvas to transform Concur's data schema into S/4HANA's canonical format, including GL account, cost center, and vendor ID harmonization. AI assists in suggesting complex mappings.

Data Validation & Enrichment: Implement business rules and AI-powered checks within the iPaaS to validate data against S/4HANA's requirements (e.g., valid GL accounts, existing Business Partners) and enrich data where necessary.

S/4HANA Posting: Invoke S/4HANA OData APIs (e.g., `/sap/opu/odata/sap/APIFINANCIALACCOUNTINGDOCUMENTSRV`, `/sap/opu/odata/sap/APISUPPLIERINVOICEPROCESS_SRV`) to post transactions.

Status & Reconciliation Updates: Synchronize posting status, payment details, or error messages back to Concur or an external monitoring system.

Master Data Synchronization: Implement batch or event-driven flows for bi-directional sync of Business Partners (Vendors/Employees), Cost Centers, and GL Accounts.

Data Touchpoints

Concur Expense Report <-> S/4HANA General Ledger Entry
Concur Expense Entry <-> S/4HANA General Ledger Entry Line Item
Concur Invoice <-> S/4HANA Supplier Invoice
Concur User/Employee <-> S/4HANA Business Partner (Employee)
Concur Vendor <-> S/4HANA Business Partner (Vendor)
Concur Cost Center <-> S/4HANA Cost Center
Concur GL Account <-> S/4HANA GL Account
Concur Payment Transaction <-> S/4HANA Payment

"SAP Concur (Expense/Invoice/Common APIs) <--> iPaaS (Connectors, Transformation, Workflow, AI) <--> SAP S/4HANA (OData APIs for Financial, Supplier Invoice, Business Partner)"

Pricing

Simple, transparent pricing for SAP Concur + SAP S/4HANA.

Start with a single integration pair and scale as your business grows—without surprise fees or transaction penalties.

Connect™ Plan

Clarity Connect

$595 /mo

Billed annually • Includes one production integration pair

  • Unlimited transactions and API calls within fair-use limits.
  • Visual workflow designer and reusable mapping templates.
  • Monitoring, alerting, and access to Clarity’s support team.
View full pricing & options
Innovative & Robust

How Middleware Integration Works

Benefits of Integrating SAP Concur

Integrating SAP Concur fosters greater efficiency and data accuracy. Automate your critical business processes to deliver consistently outstanding results.

Hover over the steps on the right to see detailed integration points.
Data Mapping

Key Entities & Intelligent Mapping

The integration orchestrates the flow of critical business entities between SAP Concur and SAP S/4HANA, ensuring data integrity and consistency through advanced mapping and transformation logic.

Expense Report / General Ledger Entry

An approved collection of expense entries in Concur, mapped to a financial accounting document (General Ledger Entry) in S/4HANA for posting and reconciliation.

SAP Concur Fields

ReportID EmployeeID ReportName Status TotalAmount Currency SubmissionDate ApprovalDate GLPostingStatus Expense Entries

SAP S/4HANA Fields

CompanyCode DocumentNumber FiscalYear PostingDate GLAccount DebitCreditCode AmountInCompanyCodeCurrency CostCenter ProfitCenter ReferenceDocument BusinessPartner

Mapping Notes

Concur's Expense Report header often maps to S/4HANA document header. Individual Expense Entries within the report map to line items in the S/4HANA GL Entry. Requires careful mapping of Concur Expense Types to S/4HANA GL Accounts and Cost Centers.

Next Steps

See SAP Concur + SAP S/4HANA integration in action.

Explore a guided demo, start a sandbox integration, or speak directly with our solution architects about your specific use cases.

Start Free Trial Request Live Demo
Real-World Applications

Integration Use Cases

Explore how the integration behaves in real business scenarios, with clearly defined steps, outcomes, and execution patterns.

Automated Expense Report to S/4HANA GL Posting

When an employee submits an expense report in Concur, and it gets fully approved, the integration automatically posts the detailed expense entries to the appropriate General Ledger accounts in SAP S/4HANA.

Integration Steps:

  1. 0 Employee submits Expense Report in Concur.
  2. 1 Expense Report goes through Concur's approval workflow.
  3. 2 Upon 'Approved for Payment' status in Concur, iPaaS captures the event (webhook).
  4. 3 iPaaS retrieves Expense Report and associated Expense Entries from Concur (GET /v3.0/expense/reports, /v3.0/expense/entries).
  5. 4 iPaaS maps Concur Expense Entry data (ExpenseType, Amount, CostCenter, GLAccountCode) to S/4HANA General Ledger Entry fields.
  6. 5 AI-assisted mapping validates GL account codes and cost centers against S/4HANA master data.
  7. 6 iPaaS posts General Ledger Entry in S/4HANA (POST /sap/opu/odata/sap/APIFINANCIALACCOUNTINGDOCUMENTSRV).
  8. 7 S/4HANA payment details (if applicable) are synchronized back to Concur (PUT /v3.0/payments/payments) for reconciliation.

Business Outcome

Real-time, accurate posting of expenses to the General Ledger, accelerating financial close, reducing manual data entry, and improving spend visibility.

Frequency

Real-time (event-driven)

Business Value

Key Integration Benefits

Discover the strategic advantages and business value of seamless integration between your systems.

Accelerated Financial Close
Automate the posting of approved expense reports and invoices directly to S/4HANA's General Ledger and Accounts Payable, significantly reducing manual effort and reconciliation time.
Enhanced Spend Visibility
Gain real-time insights into corporate spend across expenses, invoices, and corporate cards, enabling proactive financial control and better budgeting.
Improved Compliance & Auditability
Ensure adherence to company policies and regulatory requirements with automated policy checks, detailed audit trails, and consistent data across Concur and S/4HANA.
Reduced Operational Costs
Eliminate manual data entry, reduce errors, and streamline processes, leading to significant cost savings in finance and accounting operations.
Increased Employee Satisfaction
Expedite expense reimbursements and simplify the submission process, improving the employee experience and reducing administrative burden.
Streamlined Master Data Management
Maintain consistent and accurate employee and vendor master data across both systems, eliminating duplicates and ensuring smooth transaction processing.
✨

Accelerated Financial Close

30% Faster Close

📋 What You Get

Automate the posting of approved expense reports and invoices directly to S/4HANA's General Ledger and Accounts Payable, significantly reducing manual effort and reconciliation time.

💼 Business Impact

This benefit directly contributes to 30% improvement in Faster Close, enabling your team to focus on high-value strategic initiatives.

Technical Documentation

API Endpoints & Data Logic

Technical details for developers and architects.

Method Endpoint Purpose
GET, POST, PUT /v3.0/expense/reports Retrieve approved expense reports for S/4HANA posting, or update status.
GET /v3.0/expense/entries Retrieve detailed expense line items within reports for GL entry creation.
GET /v3.0/invoice/invoices Access approved vendor invoices for S/4HANA Supplier Invoice creation.
GET, POST, PUT /v3.0/common/users Provision and update employee profiles based on S/4HANA (HRIS) data.
GET, POST, PUT /v3.0/common/vendors Synchronize vendor master data with S/4HANA Business Partners.
POST, GET /v3.0/payments/payments Update Concur with payment statuses from S/4HANA.
POST /v3.0/financial/glentries Directly post GL entries from Concur (less common, usually via iPaaS to S/4HANA GL).

⚡ Transformation Logic

  • GL Account Derivation: Map Concur Expense Type, Vendor, and Description to S/4HANA GL Account codes using a rules engine or AI.
  • Cost Center Harmonization: Map Concur Cost Center IDs to S/4HANA Cost Center IDs, ensuring consistency.
  • Currency Conversion: Automate currency conversion for multi-currency transactions, posting in S/4HANA company code currency.
  • Vendor ID Matching: Match Concur VendorName to S/4HANA Business Partner (Vendor) ID, creating new BPs if necessary.
  • Employee ID Mapping: Map Concur EmployeeID to S/4HANA Business Partner (Employee) ID.
  • Status Code Translation: Translate Concur status codes (e.g., 'Approved for Payment') to S/4HANA posting triggers.

🛡️ Error Handling

  • S/4HANA API rate limit exceeded (handled by queuing/retries).
  • Invalid GL account or cost center (flagged by AI/validation, sent to dead-letter queue).
  • Network connectivity issues (handled by retries).
  • Duplicate invoice posting (prevented by idempotency and S/4HANA checks).
  • Authentication token expiry (handled by refresh token logic).
  • Data type mismatch during transformation (caught by schema validation).
Support & Information

Frequently Asked Questions

Common questions about integration implementation, security, and best practices.

General FAQs

▸ Why is a modern iPaaS essential for SAP Concur and S/4HANA integration?
A modern iPaaS (Integration Platform as a Service) is crucial because it provides a centralized, scalable, and resilient hub for all your Concur-S/4HANA connections. It offers robust capabilities for visual data mapping, workflow orchestration, API management, AI-driven automation, comprehensive error handling, and enterprise-grade security, moving beyond fragile point-to-point integrations common in complex ERP environments.

AI & Automation FAQs

▸ How does AI enhance SAP Concur to S/4HANA workflows?
AI significantly augments integration workflows by automating tasks like intelligent GL account mapping based on expense types and vendors, performing real-time policy compliance checks, detecting anomalies or potential fraud in spending patterns, and even assisting in resolving common integration errors. This reduces manual effort, improves data accuracy, and provides proactive insights for better spend management.

Low-Code FAQs

▸ What are the benefits of low-code/no-code for Concur-S/4HANA integrations?
Low-code/no-code tools empower finance and operations teams to build and modify Concur-S/4HANA workflows without extensive coding. This accelerates development cycles, reduces reliance on IT, and allows business users to quickly adapt automation to changing policies or operational needs, such as custom approval routing or specific data validation rules, fostering agility.

Workflows FAQs

▸ How do you handle corporate credit card transaction reconciliation with Concur and S/4HANA?
We automate this process by integrating with corporate card providers to import daily transaction feeds into Concur. The iPaaS then facilitates intelligent matching of these transactions with employee-submitted receipts and expense entries within Concur. Once reconciled and approved, the system automatically generates and posts corresponding General Ledger entries in S/4HANA to clear the corporate card accounts, ensuring accurate and timely reconciliation.

Security FAQs

▸ What are the key security considerations for this integration?
Key security considerations include using OAuth 2.0 for secure API authentication for both Concur and S/4HANA, encrypting all data in transit (TLS 1.2+) and at rest, implementing the principle of least privilege for integration user accounts, and maintaining comprehensive, immutable audit trails. The iPaaS platform adheres to industry standards like SOC 2 and ISO 27001, ensuring compliance with regulations like GDPR and SOX.

Customization FAQs

▸ Can we synchronize custom fields from Concur to S/4HANA?
Absolutely. Our iPaaS solution provides flexible mapping capabilities that allow you to synchronize custom fields defined in SAP Concur (e.g., in Expense Reports, Invoices, or User profiles) to corresponding custom fields or standard fields within SAP S/4HANA. The visual mapping canvas makes configuring these custom field mappings straightforward, ensuring all relevant business data is transferred.

Error Handling FAQs

▸ How are failed integration transactions managed and resolved?
Our integrations include robust error handling with detailed logging, automated retry mechanisms (e.g., exponential backoff for transient API errors), and dead-letter queues for unprocessable messages. A centralized monitoring dashboard provides real-time visibility into integration failures, allowing for quick identification and resolution, often with AI-assisted suggestions for common errors or escalation workflows for complex issues.

Business Value FAQs

▸ What kind of ROI can we expect from integrating Concur and S/4HANA?
Organizations typically experience a significant ROI, including a 20-40% reduction in manual data entry and reconciliation efforts, a 15-30% acceleration in the financial close process, and substantial improvements in data accuracy and compliance. This translates into considerable cost savings, enhanced operational efficiency, better financial control, and increased finance team productivity.
Pricing

Simple, transparent pricing for SAP Concur + SAP S/4HANA.

Start with a single integration pair and scale as your business grows—without surprise fees or transaction penalties.

Connect™ Plan

Clarity Connect

$599 /mo

Billed annually • Includes one production integration pair

  • Unlimited transactions and API calls within fair-use limits.
  • Visual workflow designer and reusable mapping templates.
  • Monitoring, alerting, and access to Clarity’s support team.
View full pricing & options
Next Steps

See SAP Concur + SAP S/4HANA integration in action.

Explore a guided demo, start a sandbox integration, or speak directly with our solution architects about your specific use cases.

Start Free Trial Request Live Demo