Standard operating procedure · GB2C · AI GBS & Global Business Services

Supplier Onboarding

Transactional procedure owned by S2P Control Tower in AI GBS & Global Business Services. 5 numbered steps, 1 of them a person deciding and 4 of them agent work … more

AI GBS & Global Business Services manual Service view

Procedure code

GB2C

Transactional

Rule versions in force

v1.4 · v1.2 · v2.2 · v4.1

4 governing rules stacked over it

In force since

2024-09-30

Earliest effective date across those rules

Last reviewed

2026-06-09

Latest review date across those rules

Rules approved by

Tower Lead, Source-to-Pay

Rule health

4/4

0 under review · 0 superseded

There is no document register behind this header. The version, the dates and the approver names are read off the governing rules this procedure runs inside, which is the closest thing the estate holds to a document control record. Nobody wrote these procedures. There is no document library behind this page and no Word file anywhere in the estate. Every procedure below is generated from rows this platform already holds: the line and its ordered stations, the owning team and the person accountable for it, the policy items bound to that team, and the governance gates seeded against the function. The steps, the owners, the gates, the approvers, the dwell times and the volumes are read straight off those rows. The sentences that join them together are generated. Read a procedure as the estate describing itself, not as a document somebody signed.

Purpose and scope

What this procedure is for and where it stops

To run supplier onboarding to one repeatable standard inside S2P Control Tower, part of AI GBS & Global Business Services. more

Entry condition

Runs transactional. Starts when a scheduled window opens.

Exit condition

The unit clears activate. more

In scope

Every unit of supplier onboarding raised inside S2P Control Tower, from the trigger below through to the final step.
4 of the 5 steps, which run without a person present.
1 decision that stops the line until a named person releases it.

Out of scope

Anything outside the envelope set by the owning team. It leaves the line at a gate and becomes the named approver's decision.
Work that belongs to another function. This line hands off to procurement and does not follow the unit there.
The 4 steps carried on the shared AI GBS spine. They are done for this line but not by this function.

Who owns it

Runs the line

Source-to-Pay Tower Orchestrator

Accountable person

Tower Lead, Source-to-Pay

The end of the escalation path. Above them sits GBS Chief of Staff for the function.

That team’s remit

Owns invoice work end to end inside AI GBS & Global Business Services. more

That remit describes the whole team, not this one procedure, so its counts are larger than the ones on this page.

Autonomy

85% now · ceiling 93%

Three-way match and invoice capture are the most mature agentic transactions in the enterprise. more

The procedure, step by step

5 numbered steps · 1 of them stop for a person

A step is one station on the line. more

No.	Step	Who does it	What happens	System of record	Time on the step	In flight
01	Request GBSgbs	Requisition Validation Agent	Requisition Validation Agent performs this step unattended on the shared AI GBS transaction spine, outside the function, inside the envelope its owning team has set, and writes an evidence record naming the actor, the authority it acted under and the digests of what it read and wrote.	Group ERP — Financials	20 minstandard 33 min	32
02	Screen GBSgbs	Requisition Validation Agent	Requisition Validation Agent performs this step unattended on the shared AI GBS transaction spine, outside the function, inside the envelope its owning team has set, and writes an evidence record naming the actor, the authority it acted under and the digests of what it read and wrote.Hands off to procurement	Group ERP — Financials	2.6 hrsstandard 4.5 hrs	18
03	Bank verify HumanpolicyDecision	Tower Lead, Source-to-Pay Releases: Tower Lead, Source-to-Pay	Work stops. Tower Lead, Source-to-Pay reviews what the line has produced and either releases the unit or sends it back. Nothing downstream of this step runs until that decision is made.Holds until: Held for a named human when the unit exceeds the invoice decision envelope, when confidence falls below the floor, or when a policy clause is engaged.	Group ERP — Financials	1.1 hrsstandard 1.8 hrs	1
04	Create master GBSgbs	Requisition Validation Agent	Requisition Validation Agent performs this step unattended on the shared AI GBS transaction spine, outside the function, inside the envelope its owning team has set, and writes an evidence record naming the actor, the authority it acted under and the digests of what it read and wrote.	Group ERP — Financials	3.1 hrsstandard 3.8 hrs	17
05	Activate GBSgbs	Requisition Validation Agent	Requisition Validation Agent performs this step unattended on the shared AI GBS transaction spine, outside the function, inside the envelope its owning team has set, and writes an evidence record naming the actor, the authority it acted under and the digests of what it read and wrote.	Group ERP — Financials	48 minstandard 1.7 hrs	41

The swimlane

The same steps, laid out by who is holding the work

Three lanes: a person deciding, an agent working, and the shared services spine. more

Person1 station and 14% of the dwellAgent0 stations and 0% of the dwellShared spine4 stations and 86% of the dwell2 crossings between lanes

Human

decides

Agent

does the work

GBS

shared spine

System

attributed by rule

Group ERP — Financials

Click any station to see who does it, what it costs in time, the rule that gates it and the system attributed to it.

Run the procedure

One unit walked along that swimlane on the happy viable agentified path

Press run and a single unit enters at station 01. Each station takes exactly the dwell this platform records for it and is held by whoever the estate says holds it. more

speed

worked clock

00:00

allowance clock

00:00

stations cleared

0/5

the happy path, worked time0 min of 7.9 hrs

the same run against its allowance0 min of 12 hrs

Human

decides · 1

Agent

does the work · 0

GBS

shared spine · 4

run log

Nothing has happened yet. more

where the worked time goes7.9 hrs a unit

Person1.1 hrs · 14%Shared spine6.8 hrs · 86%2 crossings between lanes

what makes this path viable

The lanes are the recorded lanes. 1 of the 5 stations stop for a person and every one of them still does on this run.
Every one of the 1 decision is still taken by the person who holds it. The happy path is that each one is released first time, not that it is skipped.
The owning team is held to a 93% autonomy ceiling and this run sits at 86% unattended, inside it.
1 system is attributed across the stations, and 0 of them are connected. Nothing in this run has been watched executing against a real system of record.

what would have to change

One decision, held by Tower Lead, Source-to-Pay. more

stays with a person

03 Bank verify — The last decision on the line. Something on every procedure ends with a person, so this one is never offered.

what this run is, and what it is not

This is a run, not a forecast. more

Happy means nothing goes wrong: no station raises an exception, no gate sends the unit back, no rework loop fires and nothing sits in a queue between stations. more

The second clock is the allowance. more

A decision may be handed to the agent lane only if two things hold … more

The run reads the station rows only. more

What this run does not model: arrival patterns, contention between procedures for the same person, shift patterns, weekends, learning curves, and the cost of anything. more

Run it again, going wrong

The same unit, the same stations, broken the way the estate already records breaking

This is the same unit on the same stations, breaking. more

No break below was chosen. more

One play head, two tracks, the same scale. The clean run stops when it runs out of stations; the other one keeps going.

As written

5 stations, nothing waiting, nothing sent back

0 min of 7.9 hrs

now Request · Requisition Validation Agent · 20 min

As the ledger has it

the same stations, plus 3 categories the estate already counts

0 min of 13 hrs

now Request · Requisition Validation Agent · 20 min

personagentshared spinework the break addsnobody working it

What breaks, and where it is counted

No break below was chosen. more

What the two runs say together

3 counted categories land on this procedure. more

What this run cannot claim

These breaks are shown together on one unit so the shape of a bad day fits on one screen. more

Two clocks run. Worked time is the sum of the time the work is actually being done … more

Roles and responsibilities

3 named parties

The responsibility grid is assigned by a rule, not lifted from a chart. more

Party	RACI	Steps	Duty	Escalates to
Source-to-Pay Tower Orchestrator orchestrator	Runs the line	0	Sequences this line, holds its timetable and decides what has to surface to a person. more	Raises to Tower Lead, Source-to-Pay when a unit falls outside the envelope or confidence drops below the floor.
Requisition Validation Agent agent A4% autonomy · ceiling A4% 98% clean · 1% overridden	Responsible	4	Runs the repeatable portion of s2p control tower inside the shared transaction spine at spine cost and spine controls.	Escalates to Tower Lead, Source-to-Pay when the unit falls outside the decision envelope or confidence drops below the floor.
Tower Lead, Source-to-Pay person	Accountable and responsible	1	Holds 1 decision on this line. more	Accountable to Tower Lead, Source-to-Pay for the decisions held here.

Party

RACI

Steps

Duty

Escalates to

Source-to-Pay Tower Orchestrator

orchestrator

Runs the line

Sequences this line, holds its timetable and decides what has to surface to a person. more

Raises to Tower Lead, Source-to-Pay when a unit falls outside the envelope or confidence drops below the floor.

Requisition Validation Agent

agent

A4% autonomy · ceiling A4%

98% clean · 1% overridden

Responsible

Runs the repeatable portion of s2p control tower inside the shared transaction spine at spine cost and spine controls.

Escalates to Tower Lead, Source-to-Pay when the unit falls outside the decision envelope or confidence drops below the floor.

Tower Lead, Source-to-Pay

person

Accountable and responsible

Holds 1 decision on this line. more

Accountable to Tower Lead, Source-to-Pay for the decisions held here.

Decision points and escalation

1 places this procedure stops

03 · Bank verify

1.1 hrs

Held for a named human when the unit exceeds the invoice decision envelope, when confidence falls below the floor, or when a policy clause is engaged.

Tower Lead, Source-to-Pay

Handoffs out of this procedure

Step 02 Screen passes the work to procurement.

The rules this procedure runs inside

4 governing rules

S2P Control Tower Decision Envelope

active

GB2-POL-200 · envelope · vv1.4

Agents in this lane may act without a human when the invoice sits inside the stated value, risk and confidence envelope. more

Approved by Tower Lead, Source-to-Pay · in force 2025-06-29 · reviewed 2026-06-03

Binds Requisition Validation Agent, PO Issuance Agent, Goods Receipt Agent, Invoice Capture Agent, Three-Way Match Agent, Exception Resolution Agent

APAC

S2P Control Tower Evidence Standard

active

GB2-POL-201 · evidence · vv1.2

Every autonomous decision writes inputs, the rule version applied, the model and prompt version, the output and a reversal path. more

Approved by Tower Lead, Source-to-Pay · in force 2024-09-30 · reviewed 2026-06-04

Binds Requisition Validation Agent, PO Issuance Agent, Goods Receipt Agent, Invoice Capture Agent, Three-Way Match Agent, Exception Resolution Agent

Global · EU

S2P Control Tower Escalation Rule

active

GB2-POL-202 · escalation · vv2.2

Escalation is mandatory when confidence falls below the floor, when two options sit inside the confidence band, or when a break condition on a ratified position fires. more

Approved by Tower Lead, Source-to-Pay · in force 2025-02-09 · reviewed 2026-05-15

Binds Requisition Validation Agent, PO Issuance Agent, Goods Receipt Agent, Invoice Capture Agent, Three-Way Match Agent, Exception Resolution Agent

EU · UK

S2P Control Tower Autonomy Ceiling

active

GB2-POL-203 · ceiling · vv4.1

The ceiling for this lane is 93 on the platform scale. more

Approved by Tower Lead, Source-to-Pay · in force 2024-12-10 · reviewed 2026-06-09

Binds Requisition Validation Agent, PO Issuance Agent, Goods Receipt Agent, Invoice Capture Agent, Three-Way Match Agent, Exception Resolution Agent

US · Canada

Systems this procedure touches

1 named · 0 connected

System attribution is a rule, not a reading. more

System	Vendor	Domain	Criticality	Steps	Connection
Group ERP — Financials	SAP S/4HANA	ledger	critical	5	modeled

0 of the 1 systems on this procedure is connected to the platform, and none of the twenty-six in the estate register is. 1 of them are marked as taking a write back, which is a property of the system, not a live path from here.

How it performs

End to end

7.9 hrs

Summed from the time each step sits, standard 12.4 hrs — running at 64% of the standard.

Touchless

95%

Agent share

80%

A week

6,883

In flight

109

Effort a week

66 human minutes · 410 agent minutes

Volume multiplied by the time on each step. more

Assurance over this procedure

4 governance gates sit above it

The twenty-four controls and eighteen exception classes in this platform are held at estate level … more

Gate	What trips it	Who releases it	Clock	Waivable
Autonomy level increase approval	Any move of an agent or workflow to a higher autonomy band	Business owner and risk	5 business days	No
New data class processing approval	Any service processing a data class not already approved	Risk and privacy officer	5 business days	No
Outsourcing or service removal approval	Any material operating-model, sourcing or service-portfolio change	GBS executive committee	10 business days	No
Agent recertification oversight	Quarterly evaluation of every agent against its published certification criteria	Agent governance board	Quarterly	No

Next to it on the same team

S2P Control Tower

Requisition to PO

GB2A

Invoice to Pay

GB2B

Payment Integrity Sweep

GB2D

All of AI GBS & Global Business Services

What this document is and is not

These procedures describe the modeled estate. more

Actions

What is waiting on a person

What one procedure document gives you, and what to check before you treat it as the standard.

151

named approvers appear across the library

Every decision point on every procedure carries a job title, not a queue. more

143

steps in the library hand their unit to another function

A handoff is where a procedure stops being one team’s problem. more

controls exist in the estate, and they belong to no procedure in particular

Controls and exception classes are held estate-wide. more

Operations

What this desk is allowed to start

A surface that only reports is not operable. more

Trigger and bound

A procedure document prints purpose, scope, entry and exit, the numbered steps with the actor on each, the roles and their RACI position, the swimlane, the decision points and escalation, the handoffs, the governing rules with version and approver, the systems by rule and the timings. more

Live observability

What the record shows right now

The whole library, by lane, so a single document can be read against the estate it came from. more

Current distribution

2,748 steps

Agent, inside the function1,38951%

Agent, on the shared spine85131%

Person deciding at a gate50818%

Is policy and strategy coming to fruition

Whether the written intent is holding here

Half. The document is complete and every actor on it is measured more

Not holding on the record

A procedure here carries a version, an approver, an in-force date and a last-review date. more