SAP: Automotive

SAP for automotive

SAP that keeps pace with the OEM's call offs. We implement and migrate SAP S/4HANA for automotive suppliers, OEMs and importers, connect it to OEM EDI, sequencing and the line, and clean up the custom code that grew around delivery schedules over the years. Senior SAP and integration engineers own the design, AI coding agents carry the volume, and every line is reviewed by a human.

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Key highlights

We implement, migrate and support SAP S/4HANA for automotive: scheduling agreements, JIT and JIS processing, EWM, QM and PP.
OEM forecast and call off messages, such as EDIFACT DELFOR and DELJIT or ANSI X12 830 and 862, are mapped to scheduling agreement releases with monitoring.
For importers and distributors we work with SAP Vehicle Management System (VMS) and dealer management integrations.
Mainstream maintenance for SAP ECC 6.0 ends on 31 December 2027.
We are an independent engineering team, not an SAP partner. Licences stay with SAP or your reseller.

SAP problems we see in automotive

Automotive SAP systems run on tight, customer driven schedules. Small integration delays turn into premium freight, line stoppages and chargebacks.

ECC with a deadline. ECC 6.0 mainstream maintenance ends at the end of 2027. For a supplier with dozens of OEM EDI connections and sequenced deliveries, the S/4HANA migration has to be planned around customer programme launches.

EDI errors found by the OEM. A failed DELJIT or a mismatched release goes unnoticed until the customer reports a short shipment, and the team spends the morning on premium freight instead of root cause.

Sequencing outside SAP. JIS calls are handled in a separate sequencing tool or a custom Z program, so SAP stock, deliveries and billing only catch up after the fact, and cumulative quantities drift from the OEM's figures.

Custom code around schedules. Years of Z reports and user exits for cum quantity reconciliation, release comparison and packaging. Many are unused, but nobody can prove which, so the migration estimate grows.

Returnable packaging nobody tracks. Racks, bins and pallets owned by the OEM or the supplier move with every delivery, but balances are kept in spreadsheets and losses appear as unexpected charges.

Quality data disconnected from deliveries. PPAP status, 8D complaints and inspection results sit in separate tools, so a customer complaint takes days to trace back to batch, line and shipment.

Capabilities

Our SAP capabilities for automotive

We cover the customer driven supply processes in SAP and the integrations that tie them to OEMs, the line and dealers.

Scheduling agreements and OEM EDI

Sales scheduling agreements with forecast and JIT delivery schedules, cumulative quantity handling, and inbound OEM messages such as EDIFACT DELFOR, DELJIT and X12 830 and 862 mapped and monitored, with outbound ASNs and invoices.

JIT and JIS supply to customer

JIT supply to customer in S/4HANA: receiving summarised and sequenced JIT calls, building deliveries in sequence and billing, so sequenced shipments are planned and posted in SAP rather than in a side system.

JIT supply to production and EWM

Control cycles, JIT calls to internal warehouses or suppliers, and EWM processes for line feeding and production supply, so material arrives at the line by demand rather than by fixed replenishment.

Quality and traceability

SAP QM inspection plans and lots, quality notifications for customer and supplier complaints, batch and serial traceability from incoming material to shipped part, with links to PPAP and 8D processes.

Vehicle management for importers

SAP Vehicle Management System for vehicle procurement, stock, sales to dealers and returns at importers and distributors, integrated with OEM systems and dealer management systems.

Custom code and interface cleanup

Usage analysis and ATC checks across schedule related custom code and EDI mappings, then each object is retired, adapted to S/4HANA or rebuilt as a clean extension on SAP BTP.

How we deliver

From ECC audit to S/4HANA without missing a call off

01
Assess
We review your customers, EDI connections, scheduling agreements, sequencing setup, custom code and quality processes. Output: a migration approach, scope, risk list and a cutover window aligned to customer programmes.
02
Design
Fit to standard workshops for scheduling agreements, JIT and JIS, warehouse and quality processes, an EDI and integration architecture, and a decision on every custom object.
03
Build and migrate
Configuration, EDI mapping and testing with each OEM, extensions on SAP BTP, and cumulative quantity and open release migration reconciled against customer figures before cutover.
04
Run and improve
Hypercare with EDI monitoring around the clock in the first weeks, then support with agreed response times. Further plants and customers follow the same template.

Compliance and controls in automotive SAP

Automotive SAP systems sit inside customer quality and information security requirements as well as financial controls. We design for the obligations that touch SAP directly.

IATF 16949 support TISAX aligned information security OEM customer specific requirements SOX and ITGC controls Segregation of duties in SAP roles GDPR and UK GDPR Germany B2B e-invoicing France B2B e-invoicing

Quality records support IATF 16949. Inspection results, complaints, corrective actions and batch traceability are kept in SAP with users and timestamps, so customer audits and IATF 16949 surveillance can be answered from the system.

OEM data is handled securely. Many OEMs require suppliers to hold a TISAX assessment. We work within your information security controls, keep customer drawings and prototype data access restricted, and document our handling for your assessment.

Invoicing and financial controls are designed in. Self billing with OEMs, credit and debit notes and cum quantity based invoicing are tested against your internal control matrix, and e-invoicing obligations such as Germany's issuing phases from 2027 and France's mandate from September 2026 are planned into output design.

SAP products and tools we work with

Standard SAP automotive scope first, with integration tooling that keeps OEM connections monitored and decoupled from the core.

SAP S/4HANA (SD, PP, QM, MM) Scheduling agreements and JIT processing SAP EWM SAP Vehicle Management System SAP BTP and Integration Suite EDIFACT DELFOR, DELJIT, DESADV ANSI X12 830, 862, 856 OData, BAPI and IDoc ABAP and ABAP RESTful (RAP) SAP Fiori SAP Readiness Check and ATC SAP Datasphere and Analytics Cloud

FAQ

Common questions

Does SAP S/4HANA support JIT and JIS for automotive suppliers?

Yes. S/4HANA includes JIT supply to customer, which receives summarised and sequenced JIT calls and carries them through delivery and billing, and JIT supply to production for line feeding. Many ECC suppliers ran this in custom code or older add ons, so the migration is a chance to move back to standard.

How do you migrate OEM EDI connections without disrupting supply?

Customer by customer, with parallel testing. We map and test each OEM's messages in the new system, reconcile cumulative quantities and open releases against the customer's figures, and time cutover away from programme launches and peak call off periods.

What is SAP Vehicle Management System used for?

SAP VMS is used mainly by vehicle importers and distributors to manage vehicle procurement from the OEM, vehicle stock, sales to dealers and related services. We configure and extend it and integrate it with OEM and dealer systems.

Can you keep our existing sequencing system?

Yes. If your sequencing or MES tool works well, we integrate it cleanly with S/4HANA. Where it is custom code that duplicates standard JIT functions, we usually recommend moving to the S/4HANA standard during the migration.

Are you an SAP partner?

No. RG INSYS is an independent engineering company and does not claim SAP partner status or SAP certifications. You license SAP directly from SAP or your reseller, and we work on your system under NDA with full IP assignment.

Can you monitor our automotive EDI after go live?

Yes. Our application management support includes EDI and interface monitoring with agreed response times, so failed or mismatched OEM messages are fixed before they become short shipments.

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