SAP Business One Integration

A battle-tested, production-grade integration connecting StockControl WMS with SAP Business One. Handle 30,000+ items across multi-branch operations with real-time bidirectional synchronization.

30,000+

Items Synchronized

Master Data

2 min

Sync Cycle

Inventory Audits

99.9%

Uptime

Cloud-Native

Warehouse Processes

Full Lifecycle

Enterprise-Grade Integration Architecture

Our SAP integration creates a parallel operational environment where warehouse activities are managed through specialized Android data collectors while automatically informing SAP Business One of results in real-time. The decoupled architecture provides the best of both worlds: enterprise-grade ERP capabilities with agile, mobile-first warehouse operations.

SAP remains the "source of truth" for ERP-level data, while StockControl handles the granular warehouse logic. The synchronization engine manages bidirectional data flow with sophisticated status-tracking, error recovery, and high-frequency 2-minute sync cycles for critical operations.

Why This Integration Stands Out

Production-tested with 30,000+ items and multi-branch operations
Full warehouse lifecycle: reception, QC, picking, distribution, inventory
Sophisticated error handling with status-driven recovery
Cloud-native deployment on Google Cloud Run with Docker

Technology Stack

Python

Backend

REST API integration layer

MySQL

Database

StockControl operational data

Docker

Containerization

Portable, scalable deployment

GCR

Google Cloud Run

Optimized minimal resource footprint

OData

SAP Service Layer

REST/OData API integration

Android

Mobile Devices

Honeywell 6500 & industrial data collectors

Bidirectional Data Synchronization

SAP → StockControl (Import)

Master Data (30,000+ records)

• Items with categories, barcodes, DUN codes, price lists
• Item category hierarchy
• Customers and business partners
• Delivery/shipping addresses
• Units of Measure with DUN mapping

Logistics Infrastructure

• Warehouse definitions
• Storage locations and rack areas
• Stock rules (min/max per item/warehouse)

Operational Documents

• Purchase orders with line items, prices, taxes
• Sales orders for fulfillment
• Transfer orders between branches
• Inventory adjustments and counts

Special Data

• 100% item replacement mappings (OALI table)
• Price lists with AvgStdPrice + IVA
• Stock velocity calculations

StockControl → SAP (Export)

Reception Results

• PO confirmation with received quantities
• All delivery notes as SAP observations
• Single consolidated reception document per batch

Distribution Results

• Sales order fulfillment confirmation
• Transfer order completions
• Inventory transfer request updates

Inventory Accuracy

• Blind audit results as inventory counts
• Replenishment completions
• Lot consumption adjustments

Real-Time Updates

• Stock updates during picking operations
• Location changes and movements
• Branch transfer status progression

SAP Business One API Integration

The integration uses SAP Business One Service Layer API (REST/OData v2) with session-based authentication, pagination support, and ETag-based change tracking for reliable data synchronization.

POST QueryService

Inventory / Stock

Crossjoin of Items and ItemWarehouseInfoCollection for real-time stock levels per warehouse. Retrieves InStock, Committed, and Ordered quantities.

Items + ItemWarehouseInfo

GET PurchaseOrders

Purchase Orders

Full PO header and line items including quantities, prices, taxes, delivery dates, and remaining open quantities.

DocEntry, DocNum, CardCode...

GET UnitOfMeasurements

Unit of Measure

UoM definitions with DUN code extraction for accurate Android scanner barcode mapping. Handles SAP's unconventional quantity encoding.

DUN codes, packaging units

OData v2 Protocol

Session Management

B1SESSION cookie-based authentication with pagination via Prefer: odata.maxpagesize and ETag change tracking.

Cookie auth, pagination

Internal Tables

OALI Table Access

Direct access to SAP's internal OALI table for 100% item replacement mappings, enabling automatic substitution when items are out of stock.

ITEM-REPLACEMENT-TABLE

Custom Logic

Date Handling

Special handling for SAP's "1-01-01" date edge case in Google Cloud Run environment, ensuring data integrity across all date fields.

Edge case handling

Complete Warehouse Process Coverage

Reception & Stowing

Multiple delivery notes received in single process, linked to N purchase orders. Each batch gets unique "Packages to control" barcode labels. Decoupled QC allows physical receipt and quality checks to operate independently.

• Cross-docking and new location registration
• Thermal barcode printer integration
• Single SAP reception doc per batch

Quality Control

Three-state classification system with automatic SAP impact:

Accepted - Settles PO, moves to "Ready to stow"

Rejected - Damaged/expired, alerts manager

Excess - Over quantity, reserved area

Picking & Distribution

Intelligent reservation conversion based on complex business rules: 15-day stock minimum, 100% item replacements, maximum transfer limits, committed stock awareness, and closed package optimization.

• Multipliers for pallet-level picking
• Location scanning for multi-location products
• Real-time stock updates during picking

Inventory Auditing

Dual-origin blind audit system. SAP-origin counts sync every 2 minutes. StockControl-origin audits map to warehouses and export back as finished counts. Supports item collections and batch validation.

• 2-minute sync cycles for critical counts
• Disabled item and batch validation
• Results exported as SAP inventory counts

Internal Movements

Intra-warehouse movements with real-time server-side validation. Supports multiple barcode formats: item label, EAN, SAP code, DUN code. Multi-location handling with rack barcode selection.

• Server-side (not client) validation
• User-attribution for all movements
• Multiple barcode format support

Branch Transfers

Complete transfer lifecycle managed through sync panel. Status flow: draft → pending → in_process → processed → transferred. Physical transfer from ESAN to TRANS warehouse tracked at each stage.

• Status-driven error handling
• Multi-stage physical tracking
• SAP InventoryTransferRequests update

Sophisticated Error Handling & Reconciliation

Every synchronized process maintains explicit status states with detailed observation logging. Failed processes can be retried via pending_reprocess status.

Process Status States

pending_fillWaiting for content retrieval

pendingQueued for processing

in_processActive processing

processedReady for SAP export

transferredSuccessfully transferred

crashedProcess had problems

failedProcess failed

cancelExplicitly cancelled

pending_reprocessRetry requested

Reconciliation Mechanisms

Observation field: Every failed process logs detailed error messages
Manual sync panel: Admins can review results and trigger reprocessing
Server-side validation: All movements validated at server, not client
PO settlement tracking: Accepted goods settle PO; rejected/excess do not

Ready to Transform Your Warehouse Operations?

Let us show you how our SAP Business One integration can streamline your entire warehouse lifecycle.