CTR-S2P-SUITE · version 2

Source-to-Pay Suite — Purchase requisitions

Privacy approval carries a condition: the requester name must be pseudonymized before it reaches the spine, which the staging boundary now enforces.

RatifiedDrifted

What the contract says

These are the terms the connector is generated against. A source that stops matching them is a drift finding, not a silent data change.

Entity

Purchase requisition · bidirectional

Primary key

requisitionId + lineNumber

Declared volume

34,000 records a day

Freshness commitment

1 h

Owner

K. Boateng · Procurement Technology

Vendor

SAP Ariba · critical criticality · modeled

Cardinality

One requisition to many lines. One line to at most one purchase order line. A requisition line with two purchase order lines is a source defect and quarantines.

Write-back rule

Requisition creation and requisition cancellation are in scope. Award and contract signature are not, and the contract forbids them explicitly.

Review state

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

Security reviewApproved

D. Contreras · Jul 23, 2026

Privacy reviewApproved with conditions

Maitre Olivier Lascaux · Jul 28, 2026

Validation and drift

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

Last validatedAug 12, 2026 · 6 d ago

8,000 records read in the sample.

The last sample found the supplier tax identifier arriving as a free-text string where the contract declares a structured type, and a new approval-delegate field present in the payload that the contract does not name. The connector fails loudly on both rather than mapping them by guess.

The field list

6 fields · 2 key · 2 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
Requisition id	BANFN	requisition.ref	string(10)	keyinternal	In contract	Unique. Reused numbers across company codes are a known source behavior and are namespaced on entry.
Line number	BNFPO	requisition.line	integer	keyinternal	In contract	Positive. Gaps are permitted; duplicates are not.
Supplier tax identifier	STCEG	requisition.supplierTaxId	string(20)	nullableinternal	Type changed Arriving as unvalidated free text in the last sample. Fifty-one of eight thousand rows carried a value the country format table rejects.	Structured by jurisdiction. Validated against the country format table before admission.
Requested by	AFNAM	requisition.requesterHash	string(64)	personalconfidential	In contract	Pseudonymized at the boundary. This is the condition attached to the privacy approval.
Net value	PREIS	requisition.netValue	decimal(15,2)	internal	In contract	Positive. Must carry a currency or the line is quarantined.
Approval delegate	ZZDELEG	(unmapped)	string(12)	nullablepersonalconfidential	New and unmapped Present in the source payload since a source release earlier this month. The connector refuses it rather than storing it, and the contract needs a version bump before it can be used.	Not declared in this version of the contract.

What has passed the staging boundary against this contract

2 batches · 12,200 arrived · 11,019 admitted · 1,181 quarantined · 0 rejected

Staging boundary

Batch	Arrived	In	Admitted	Quarantined	Rejected	Result	Gate
STG-0004	Aug 18, 08:00	6,220	5,839	381	0	Partly admitted	5,839 admitted · 381 quarantined · 0 rejected outright.
STG-0005	Aug 18, 07:00	5,980	5,180	800	0	Partly admitted	5,180 admitted · 800 quarantined · 0 rejected outright.

Rejects raised against these batches

4 reasons covering 1,181 records. Each one names a field, what was observed and what the contract expected.

Supplier tax identifier arrived as a structure310 records · 1 h oldContract change proposed

Observed: An object with country and value keys

Expected: A string

STG-0004 · field supplierTaxId · queue quarantine · K. Boateng

Counterparty not matched to the supplier master71 records · 1 h oldOwner assigned

Observed: Free-text counterparty names on 71 lines

Expected: An active supplier record

STG-0004 · field supplierId · queue quarantine · K. Boateng

Supplier tax identifier arrived as a structure288 records · 2 h oldContract change proposed

Observed: An object with country and value keys

Expected: A string

STG-0005 · field supplierTaxId · queue quarantine · K. Boateng

Approval delegate field is not in the contract512 records · 2 h oldContract change proposed

Observed: A populated field the contract does not declare

Expected: Nothing. The field is unmapped

STG-0005 · field approvalDelegate · queue quarantine · K. Boateng

Replay windows

1 window recorded against this contract.

Replay register

RPL-003Completed

Contract change · Jul 27, 2026 to Aug 3, 2026

The supplier tax identifier changed type at the source. The week was re-read against the amended mapping to see what the old mapping had dropped.

26,410 replayed · 25,902 held at the idempotence key · 0 duplicates created

Write-back routes into this system

2 routes designed against Source-to-Pay Suite.

Write-back register

approve-and-release · RequisitionDesigned, never live

WB-S2P-01 · agent · authority PR8-AUTH-A1 · policy PR8-POL-200

3 attempted · 0 written to a production system

update-tax-identifier · Supplier recordRefused by policy

WB-S2P-02 · agent · authority PR6-AUTH-A1 · policy GB8-POL-200

2 attempted · 0 written to a production system

What goes stale when this feed does

5 asserted figures depend on Source-to-Pay Suite. The rule on each row is what the surface does when the feed misses its commitment.

Freshness

Figure	Where it is shown	Role	On stale	Note
Open purchase order commitment	Reconciliation ledger REC-02	contributing	Mark it stale	Requisition and award records explain the movement in the balance but do not set it.
Touchless processing rate	AI GBS towers	contributing	Mark it stale	Requisition-side touchless volume is folded into the same rate.
Active supplier records	Procurement cockpit	primary	Suppress the figure	The supplier master is the source. A stale read shows suppliers that have already been blocked.
Units held in intake quarantine	Intake quality	contributing	Mark it stale	Requisition-side holds are the second largest group.
Work units under management	Subway map, function cockpit	contributing	Mark it stale	Requisition and invoice work units arrive on this feed.

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. What they are not is a connection. No connector on this estate is attached to a customer instance, so every batch, every replay and every write-back attempt recorded here ran against a modeled extract or a sandbox, and the registry keeps saying modeled.

The last validation read 8,000 records 6 days ago, which is 24% of a single day at the declared volume. A sample proves the shape of what it read and nothing beyond it.