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Unify Epicor P21 and SAP S/4HANA: Real-time ERP Integration

Break down data silos and automate critical business processes across Epicor P21 and SAP S/4HANA with our AI-powered, low-code integration platform.

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The Challenge

The Challenge: Fragmented Operations with Disconnected ERPs

Running Epicor P21 and SAP S/4HANA in isolation creates significant operational friction, leading to manual processes, data inconsistencies, and delayed decision-making. Your business demands a unified view, but achieving it across two distinct ERP powerhouses is complex.

  • Manual Data Entry & Reconciliation: Copy-pasting data between P21 and S/4HANA for sales orders, inventory, or financial postings is time-consuming and prone to human error.
  • Delayed Business Processes: Lack of real-time synchronization causes lags in order fulfillment, inventory updates, and financial reporting, impacting customer satisfaction and cash flow.
  • Inconsistent Master Data: Customer, Vendor, and Product (Material/Inventory Item) data often differs between systems, leading to duplicates, inaccurate reporting, and compliance risks.
  • Lack of End-to-End Visibility: Without a unified view, tracking the complete Order-to-Cash or Procure-to-Pay cycle across both ERPs becomes a complex, opaque challenge.
  • Complex Financial Close: Reconciling general ledger entries, invoices, and payments from two separate financial systems can be a lengthy and error-prone process.
Integration Diagram
Solution Illustration
The Solution

The Solution: Seamless Epicor P21 and SAP S/4HANA Integration

Our AI-powered iPaaS provides a comprehensive, low-code solution to connect Epicor P21 and SAP S/4HANA, transforming your disconnected ERP landscape into a unified, intelligent operational ecosystem. We enable real-time data exchange, automated workflows, and a single source of truth, empowering your business to operate with unprecedented efficiency and accuracy.

  • Pre-built, configurable connectors for Epicor P21 and SAP S/4HANA.
  • Visual, drag-and-drop workflow designer for rapid integration development.
  • AI-assisted mapping and data transformation engine.
  • Real-time, event-driven architecture for instant data synchronization.
  • Robust error handling, monitoring, and alerting capabilities.
Implementation Timeline

Go live with Epicor P21 + 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 Epicor P21 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 Epicor P21 + 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

  • Pre-built, configurable connectors for Epicor P21 and SAP S/4HANA.
  • Visual, drag-and-drop workflow designer for rapid integration development.
  • AI-assisted mapping and data transformation engine.
  • Real-time, event-driven architecture for instant data synchronization.
  • Robust error handling, monitoring, and alerting capabilities.
  • Centralized governance and version control for all integration flows.
  • Support for both cloud and on-premise P21/S/4HANA deployments.

Technical Integration Architecture: Connecting P21 and S/4HANA

Our iPaaS provides the intelligent middleware layer, orchestrating seamless, secure, and scalable data exchange between Epicor P21 and SAP S/4HANA. We leverage an API-first and event-driven strategy to ensure real-time responsiveness and data consistency across your enterprise.

Data Flow Steps

Connectivity & Authentication: Securely establish connections to P21 (via REST APIs, Service Connect, or direct database access for legacy needs) and S/4HANA (primarily OData APIs via SAP Gateway, with fallback to RFC/BAPI for specific functions). Dedicated service accounts with least-privilege access and OAuth 2.0/token-based authentication are implemented.

Event Capture & Triggers: Configure event listeners or webhooks in P21 (e.g., on Sales Order creation, Inventory update) and S/4HANA (e.g., SAP Event Mesh for Business Partner changes, OData service notifications) to capture real-time business events.

Data Transformation & Mapping: Utilize the iPaaS's visual mapping canvas and AI-assisted tools to transform source data schemas (P21 entities) into target data schemas (S/4HANA entities), applying complex business logic, lookups, and data cleansing rules.

Workflow Orchestration: Design multi-step workflows to sequence operations, handle conditional logic, and manage error paths. For instance, a P21 Sales Order event could trigger Customer creation in S/4HANA, then Sales Order creation, followed by inventory checks.

Error Handling & Monitoring: Implement robust error handling with automatic retries, dead-letter queues for persistent errors, and real-time alerts. Centralized dashboards provide visibility into integration health and performance.

Deployment & Governance: Promote integration flows through Dev, QA, and Prod environments with version control and automated deployment pipelines, ensuring consistency and reliability.

Data Touchpoints

Epicor P21: Customer, Sales Order, Inventory Item, Purchase Order, Vendor, Invoice (AR), Cash Receipt, Shipment, General Ledger (GL) Account, Warehouse
SAP S/4HANA: Business Partner (Customer/Vendor), Material (Product), Sales Order, Purchase Order, Invoice (Customer/Supplier), Payment, General Ledger Entry, Inventory (Stock), Condition Record (Pricing), Project (WBS Element)

"Conceptual Data Flow: A central iPaaS acts as a hub. Epicor P21 systems (e.g., Sales Orders, Inventory) push/pull data to/from the iPaaS. The iPaaS transforms and routes this data to/from SAP S/4HANA systems (e.g., Sales Orders, Business Partners, Material Stock, Financial Documents). Key flows include P21 Sales Order -> iPaaS -> S/4HANA Sales Order; P21 Inventory Item -> iPaaS -> S/4HANA Material Stock; S/4HANA Business Partner -> iPaaS -> P21 Customer/Vendor; S/4HANA GL Entry -> iPaaS -> P21 GL Account (for reconciliation)."

Pricing

Simple, transparent pricing for Epicor P21 + 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 Epicor P21

Integrating Epicor P21 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 Data Entities & Intelligent Mapping between P21 and S/4HANA

Effective integration hinges on precise mapping and transformation of core business entities. Our iPaaS provides a visual canvas, augmented by AI, to harmonize the distinct data models of Epicor P21 and SAP S/4HANA, ensuring data integrity and consistency.

Customer (P21) / Business Partner (S/4HANA)

Represents the core customer record, essential for sales, accounting, and CRM. In S/4HANA, this is unified as a Business Partner with specific roles (e.g., FLCU00 for Customer).

Epicor P21 Fields

CustomerID CustomerName Address1 City State Zip PhoneNum Email TaxExempt TermsCode

SAP S/4HANA Fields

BusinessPartner BusinessPartnerCategory OrganizationName EmailAddress PhoneNumber StreetName CityName PostalCode Country TaxNumber FLCU00 (Customer Role)

Mapping Notes

CustomerID in P21 typically maps to BusinessPartner in S/4HANA. Address fields require careful harmonization due to potential format differences. TaxExempt in P21 maps to relevant tax indicators in S/4HANA. TermsCode mapping requires translation to S/4HANA payment terms.

Next Steps

See Epicor P21 + 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.

Real-time eCommerce Order Fulfillment & Financials

Integrate an eCommerce platform (e.g., Shopify, Magento) with Epicor P21 for order capture, then seamlessly flow validated orders, customer data, and inventory updates to SAP S/4HANA for financial posting, advanced planning, and detailed reporting.

Integration Steps:

  1. 0 eCommerce platform sends new order to Epicor P21.
  2. 1 P21 creates Sales Order, reserves inventory (P21 Inventory Level Synchronization to eCommerce).
  3. 2 iPaaS captures P21 Sales Order event and transforms it for S/4HANA.
  4. 3 S/4HANA creates corresponding Sales Order, Business Partner (if new), and updates Material availability.
  5. 4 Shipment confirmation from WMS (integrated with S/4HANA) updates S/4HANA Outbound Delivery.
  6. 5 iPaaS captures S/4HANA shipment event, updates P21 Shipment, and triggers P21 Invoice generation.
  7. 6 Payment from eCommerce (via P21 Automated Payment Posting) is synchronized to S/4HANA as a Payment and GL Entry.

Business Outcome

Accelerated order processing, real-time inventory accuracy across channels, instant financial recognition, improved customer experience.

Frequency

Real-time, Event-driven

Business Value

Key Integration Benefits

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

Real-time Financial Visibility
Synchronize invoices, payments, and GL entries between P21 and S/4HANA for an immediate, accurate financial picture, accelerating month-end close by up to 50%.
Accelerated Order-to-Cash
Automate sales order processing from P21 to S/4HANA, reducing manual order entry time by 80% and improving fulfillment cycles.
Optimized Inventory Management
Achieve real-time inventory synchronization between P21 Inventory Items and S/4HANA Materials, minimizing overselling and stockouts by 30%.
Single Source of Master Data Truth
Harmonize Customer, Vendor, and Product master data across both ERPs, eliminating duplicates and ensuring data consistency for better reporting and decision-making.
Enhanced Operational Efficiency
Automate manual data transfers and reconciliation tasks, freeing up valuable employee time to focus on strategic initiatives, boosting productivity by 40%.
Reduced Error Rates & Compliance Risk
Implement AI-driven validation and robust error handling to significantly decrease data entry errors and ensure compliance with financial regulations.
✨

Real-time Financial Visibility

50% Faster Financial Close

📋 What You Get

Synchronize invoices, payments, and GL entries between P21 and S/4HANA for an immediate, accurate financial picture, accelerating month-end close by up to 50%.

💼 Business Impact

This benefit directly contributes to 50% improvement in Faster Financial 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
POST, GET, PUT /api/v1/salesorders Create, retrieve, and update sales orders for eCommerce, CRM, or POS integration.
POST, GET, PUT /api/v1/customers Create, retrieve, and update customer master data for CRM, eCommerce, or loyalty programs.
GET, PUT /api/v1/inventoryitems Retrieve real-time inventory levels, product details, and update stock quantities (e.g., from WMS).
POST, GET, PUT /api/v1/purchaseorders Create, retrieve, and update purchase orders for procurement or supplier collaboration.
POST, GET /api/v1/invoices Create and retrieve customer invoices for billing and financial reconciliation.
POST /api/v1/cashreceipts Post customer payments and apply to open invoices from payment gateways.

⚡ Transformation Logic

  • Conditional Mapping: Apply different mapping logic based on data values (e.g., map customer type 'Wholesale' differently than 'Retail').
  • Data Enrichment: Augment data with information from external systems or internal lookups (e.g., adding a default cost center to a GL entry).
  • Format Conversion: Convert data types, date formats, or measurement units between systems (e.g., P21 UOM to S/4HANA UnitOfMeasure).
  • Value Translation: Translate specific codes or statuses between systems (e.g., P21 'Open' order status to S/4HANA 'A' for open sales order).
  • Aggregation/Disaggregation: Combine multiple P21 records into a single S/4HANA entry, or vice-versa, for reporting or consolidation.
  • Deduplication Logic: Implement rules to identify and handle duplicate master data records during synchronization.

🛡️ Error Handling

  • API Rate Limit Exceeded: iPaaS automatically retries with exponential backoff.
  • Data Validation Failure: Error logged, routed to dead-letter queue for review, and alert sent.
  • Network Connectivity Issues: Automated retries until connection is restored.
  • Business Logic Violation: Transaction flagged and sent for manual intervention.
  • Authentication Failure: Immediate alert, flow paused until credentials are updated.
  • Target System Unavailable: Automated retries, with escalation if prolonged.
Support & Information

Frequently Asked Questions

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

General FAQs

▸ What are the common challenges when integrating Epicor P21 and SAP S/4HANA?
Common challenges include reconciling distinct data models (e.g., P21 Customer vs. S/4HANA Business Partner), managing different API structures and rate limits, ensuring real-time synchronization for critical workflows like Order-to-Cash, handling complex business logic, and maintaining data consistency across both powerful ERPs. Our iPaaS is specifically designed to address these complexities with flexible mapping, AI-driven validation, and robust error handling.

Technology FAQs

▸ How does an iPaaS enhance Epicor P21 and SAP S/4HANA integration capabilities?
A modern iPaaS provides a centralized platform for connecting P21 and S/4HANA with pre-built connectors, visual low-code/no-code mapping tools, and powerful orchestration engines. It enables API-first, event-driven integrations, supports AI-assisted development, offers robust monitoring and governance, and abstracts the technical complexities, significantly accelerating and simplifying complex ERP integration projects.

Use Cases FAQs

▸ Can I integrate Epicor P21 and SAP S/4HANA for real-time order processing?
Absolutely. With our modern iPaaS, real-time integration for order processing between Epicor P21 and SAP S/4HANA is fully achievable. This typically involves using webhooks or event listeners to capture new sales orders in P21, immediately transforming and creating them in S/4HANA, and synchronizing inventory levels back in real-time. This ensures faster fulfillment and accurate ATP checks.

AI Features FAQs

▸ How does AI assist in mapping data between P21 and S/4HANA?
Our AI co-pilot significantly accelerates data mapping by analyzing the schemas of both Epicor P21 and SAP S/4HANA entities. It suggests optimal field-level mappings, infers transformation rules based on data patterns, and can even auto-generate complex logic for fields like addresses or pricing conditions, drastically reducing manual effort and improving accuracy.

Security FAQs

▸ What are the security considerations for P21 and S/4HANA integrations?
Key security considerations include using robust authentication methods (OAuth 2.0, token-based) with least-privilege service accounts, enforcing HTTPS/TLS 1.2+ for all data in transit, encrypting data at rest, implementing strict access controls, and adhering to compliance standards (PCI DSS, GDPR, CCPA). Our iPaaS provides these security features natively and ensures comprehensive audit trails.

Data Management FAQs

▸ How do you handle master data consistency between Epicor P21 and SAP S/4HANA?
We establish clear rules for master data ownership (e.g., P21 for Customer creation, S/4HANA for Material definition) and use the iPaaS for intelligent, bi-directional synchronization. This includes robust deduplication logic, data harmonization, and conflict resolution strategies (like 'system of record' priority) to ensure a single, consistent view of critical entities like Customers/Business Partners and Inventory Items/Materials across both ERPs.

Low-Code FAQs

▸ Is low-code/no-code suitable for complex P21 to S/4HANA workflows?
Absolutely. Modern iPaaS platforms offer low-code/no-code interfaces powerful enough to design and manage highly complex P21 to S/4HANA workflows, including multi-step orchestrations, conditional logic, intricate data transformations, and custom error handling. This empowers business users to build and adapt integrations, reducing IT dependency and increasing organizational agility.

Technical FAQs

▸ What if my Epicor P21 version has limited API capabilities?
Even with limited native APIs, our robust iPaaS can integrate with older P21 versions using alternative methods such as Epicor Service Connect, direct database connectors (with strict security and performance controls), or file-based exchanges. The iPaaS abstracts these complexities, providing a unified integration layer and enabling modernization without requiring an immediate, costly P21 upgrade.
Pricing

Simple, transparent pricing for Epicor P21 + 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 Epicor P21 + 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