CTR-ERP-MM · version 2

Group ERP — Materials and Inventory — Material movements

Feeds inventory and commitment figures on the supply chain cockpit.

RatifiedIn contract

What the contract says

These are the terms the connector is generated against. more

Entity

Material movement · bidirectional

Primary key

materialDocument + year + item

Declared volume

96,000 records a day

Freshness commitment

4 h

Owner

R. Nakamura · Supply Chain Systems

Vendor

SAP S/4HANA MM · high criticality · modeled

Cardinality

One movement document to many items. An item references exactly one material and one plant.

Write-back rule

No write-back. Inventory postings remain with the plant. The connector is read-only by design and the contract says so.

Review state

Neither review is performed by the team that wrote the contract.

Security reviewApproved

M. Lindqvist · Jul 30, 2026

Privacy reviewApproved

Dr. Katrin Wehner · Aug 3, 2026

Validation and drift

Drift is only detectable on a contract that has been read against a sample.

Last validatedJul 31, 2026 · 18 d ago

12,000 records read in the sample.

Validated against a 12,000-row extract. No divergence from the declared shape.

The field list

6 fields · 1 key · 0 personal. The validation rule on each row is what admits or rejects a record at the staging boundary.

Field	Source	Target	Type	Flags	Drift	Validation
Material document	MKPF-MBLNR	movement.documentRef	string(10)	keyinternal	In contract	Ten characters. Must be unique within the fiscal year.
Movement type	MSEG-BWART	movement.kind	string(3)	internal	In contract	Must be one of the 41 movement types declared in the mapping table. more
Material	MSEG-MATNR	movement.materialRef	string(18)	internal	In contract	Must resolve against the material master already in the spine.
Quantity	MSEG-MENGE	movement.quantity	decimal(13,3)	internal	In contract	Signed by movement type. more
Plant	MSEG-WERKS	movement.siteCode	string(4)	internal	In contract	Must resolve to a site with a declared jurisdiction, because residency depends on it.
Posting date	MKPF-BUDAT	movement.postedOn	date	internal	In contract	Inside the extract window or the batch is replayed.

What has passed the staging boundary against this contract

1 batch · 8,140 arrived · 7,962 admitted · 46 quarantined · 132 rejected

Staging boundary

Batch	Arrived	In	Admitted	Quarantined	Rejected	Result	Gate
STG-0003	Aug 18, 06:00	8,140	7,962	46	132	Partly admitted	7,962 admitted · 46 quarantined · 132 rejected outright.

Rejects raised against these batches

2 reasons covering 178 records. Each one names a field, what was observed and what the contract expected.

Movement type outside the declared table132 records · 3 h oldContract change proposed

Observed: 3 types not among the 41 declared

Expected: One of the 41 declared movement types

STG-0003 · field movementType · queue reject · R. Nakamura

Material not present in the material master46 records · 3 h oldOpen, no owner

Observed: 46 materials created at the source today

Expected: A material already in the spine

STG-0003 · field materialNumber · queue quarantine · no owner assigned

Replay windows

1 window recorded against this contract.

Replay register

RPL-004Completed

Source correction · Jul 30, 2026 to Jul 31, 2026

A goods receipt posting run was reversed and reposted at the source after a plant-level error.

14,205 replayed · 13,996 held at the idempotence key · 0 duplicates created

Write-back routes into this system

1 route designed against Group ERP — Materials and Inventory.

Write-back register

update-delivery-date · Purchase order lineDesigned, never live

WB-ERP-MM-01 · agent · authority SC9-AUTH-A1 · policy SC9-POL-200

3 attempted · 0 written to a production system

What goes stale when this feed does

2 asserted figures depend on Group ERP — Materials and Inventory. more

Freshness

Figure	Where it is shown	Role	On stale	Note
Open purchase order commitment	Reconciliation ledger REC-02	primary	Suppress the figure	Commitment is a materials-ledger balance. There is no second source for it.
Active supplier records	Procurement cockpit	contributing	Mark it stale	Purchasing organization assignment comes from the materials side.

What this contract is, and what it is not

A contract, a validation rule, a freshness commitment and a replay path are real mechanisms and they are what this wave builds. more

The last validation read 12,000 records 18 days ago, which is 13% of a single day at the declared volume. A sample proves the shape of what it read and nothing beyond it.