SAP ERP Migration

Migrate SAP ERP
and cut licensing costs by 70%

SAP ERP implementations cost $1-5M to maintain annually. Custom ABAP reports, dynpro screens, and RFC interfaces lock you into a stack SAP itself is moving away from. DEX extracts the business logic and rebuilds it in TypeScript.

$1-5MAnnual maintenance
18-36 moS/4HANA timeline
$50K+Per ABAP dev
Get your migration plan Calculate the ROI

← All migration services

The Process

20-100x faster than manual development.
More accurate because it's governed.

Every step uses the same engine: AI that works inside a structured framework, not a blank canvas. The output is auditable, testable, and yours to own.

01

AI documents your entire codebase

The engine parses every source file — ABAP reports, dynpro screens, RFC interfaces, BAPIs, custom transactions — and produces a structured inventory. Every block, every business rule, every dependency chain is catalogued before any transformation begins.

  • Full ABAP source parsing with dependency mapping
  • Business rule extraction into structured JSON descriptors
  • Complexity scoring per module (custom transactions, LOC, RFCs)
  • Automated documentation generation
Code Analysis
📄ZSD_ORDER.abap✓ 84 rules
📄ZMM_INVENTORY.abap✓ 62 rules
📄ZFI_POSTING.abap⟳ scanning...
📄ZPP_SCHEDULE.abapqueued
📄ZHR_PAYROLL.abapqueued
312screens
4,800custom transactions
890Klines of code
02

Review the business logic — add improvements

Every extracted rule is presented in a structured review interface. Your team walks through each module, confirms the logic, flags scope changes, and adds improvements — before any code is generated. This is where you fix 20 years of undocumented SAP customizations.

  • Visual business rule inspector — no ABAP reading required
  • Side-by-side: legacy logic vs proposed modern equivalent
  • Flag rules for removal, modification, or enhancement
  • Add new requirements directly into the migration scope
Business Logic Review
Keep

Net price must be positive for all materials

ZSD_ORDER → PRICING_CHECK
Improve

Material availability check — add real-time ATP

ZMM_INVENTORY → STOCK_CHECK
Remove

Legacy EDI 850 parsing for discontinued vendor

ZSD_ORDER → EDI_INBOUND
New

Multi-currency pricing with live exchange rates

Added during review
112 / 480 rules reviewed
03

AI generates the modern application

The governed AI engine transforms every reviewed rule into production TypeScript code — REST APIs, JSON descriptor screens, and typed validators. Not free-form generation: every output follows the framework's constrained patterns.

  • ABAP → TypeScript with semantic equivalence
  • Dynpro screens → JSON descriptors rendered by the governed runtime
  • RFC/BAPI calls → REST API layer with typed contracts
  • 5-10x fewer AI tokens than free-form generators
Code Generation
Legacy ABAP 
DATA: lv_price TYPE p DECIMALS 2.
SELECT SINGLE netpr INTO lv_price
  FROM a004
  WHERE matnr = lv_matnr.
IF lv_price <= 0.
  MESSAGE e001(zsd).
ENDIF.
→
TypeScript 
const price = await pricing
  .getNetPrice(materialId);
if (price <= 0) {
  return {
    ok: false,
    code: 'PRICE_NOT_POSITIVE'
  };
}
04

Automated testing and live preview

Every generated screen has unit tests derived from the original business rules. A live preview lets your team inspect each screen's layout, logic, and data flow before deployment.

  • Unit tests auto-generated from every business rule
  • Visual regression testing against legacy screenshots
  • Live preview with JSON descriptor inspector
  • Side-by-side: legacy screen vs modern screen
Test & Preview
✓validateNetPrice2ms
✓checkMaterialAvailability3ms
✓validateGLPostingPeriod1ms
✓calculatePayrollTax2ms
✓validateProductionSchedule4ms
480 / 480 passing Coverage: 100%
05

Keep building with the AI builder

Migration is day one. The same engine that migrated your SAP system becomes your tool for building new features, screens, and integrations. A DEX Architect uses the governed AI builder to ship 5-15 new screens per month.

  • Same framework, same JSON descriptors, same governance
  • Natural language → production screen in 2-4 hours
  • Add integrations (ERP, CRM, APIs) without rebuilding
  • Every new feature is immediately testable and auditable
AI Builder
Add an inventory dashboard showing stock levels by warehouse with reorder alerts
Generated: Inventory Dashboard with 3 KPI cards, stock level bars by warehouse, and a reorder alert panel. JSON descriptor created. Preview ready.
14.2KSKUs
8Warehouses
23Reorder alerts
WH-1
WH-2
WH-3
WH-4

Why 20-100x faster?

Manual development regenerates architecture decisions on every feature. The DEX engine generates against a fixed framework with reusable patterns. The AI doesn't think about folder structure, auth, logging, or deployment — it's all built in.

2-5 days

Manual development per screen

2-4 hours

DEX AI builder per screen

2-4 years

Manual full migration

1-3 months

DEX full migration

More accurate because every rule has a unit test. More auditable because every screen has a JSON descriptor. More maintainable because the output is standard TypeScript.

Ready to see the process on your SAP system?

Send us 3-5 ABAP programs. We'll run the analysis, show you the business rules we extracted, and deliver a scoped migration plan within 5 business days.

Start the assessment Calculate the ROI