SIVI VB-PUO · Release 2026 and Release 2027

Every SIVI message validated before it touches your administration

WTP Data Lab is the validate, visualise and exchange layer for the SIVI VB-PUO standard: the monthly data flows between pension administrators, fiduciary managers, investment administrators and custodians. It sits beside your core system, read-only, and proves that every message is conformant before it lands.

No production data needed · Reply within one working day · Nothing changes in your administration platform

app.wtpdatalab.com/dashboard
Thursday, 10 September 2026 · 09:12
Good morning, Marieke
You manage 12 pension funds and receive SIVI files from 4 administrators. Here's where your attention is needed.
Awaiting your action
3 items
1 escalated > 24h
Awaiting admin reply
2 threads
0 over Tier-1 SLA · avg reply 3 h
Coverage today
14/16
14 met1 partial1 missing
Expected file schedulereceived / expected
Mon4/4
Tue3/3
Wed2/3
Thu1/4
Fri0/2
Sat
Sun
Today's coverage matrixper fund and SIVI type
0001a0001b00002005410055300556
Stichting Pensioenfonds Voorbeeld
APF Compartiment Noord
Pensioenfonds Delta
Validation report · SIVI-bericht 1 (0001a)
Release 2027 · schema 001.05
JSON schema: 47 attributes, all required fields present
Code lists: puvCode U0003 found in AFDIDP
Scheme total ≠ sum of cohorts (100,000 vs 135,000)
/party/0/pension/0/startAmount
!Reserve cohort without reserveType
/party/0/pension/1/pension/0
2 errors · 1 warning · 0.4 sFeedback: statusType 0 (rejected)
16

SIVI message types, SPR and FPR, plus the feedback message

2

schema releases side by side: 2026 (001.04) and 2027 (001.05)

0

changes to your system of record: read-only beside Festina, Plexus, AxyLife or your own platform

20 min

from your sample message to a conformance and data-quality report

Three things that break in the VB-PUO chain

Month-end tests are bilateral and manual

SIVI provides no validator or test facility. Funds test with two month-ends and spreadsheets, and every counterparty pair does it again.

One bad message multiplies

A fiduciary or custodian serves dozens of funds. A single non-conformant message, or a code from the wrong release, lands at all of them at once.

Release 2027 rewrites the FPR flows

Five messages disappear, corporate actions arrive and the schemas move to JSON Schema 2020-12. Every chain migrates within a year, while 98 funds still have to transition before 1 January 2028.

How it works

Step 1

Connect

Counterparties post SIVI messages to your inbox with an API key, or you upload them. Your administration platform is not touched.

Step 2

Validate and visualise

Each message is checked against the schema of its release, the AFD code lists and the consistency checks from the handleiding. Analysts see cohorts, portfolios and pools as tables and charts, not JSON.

Step 3

Exchange and monitor

Feedback (accepted or rejected) per message, chunking of large messages, missing-message detection per month-end, tolerance bands and a complete audit trail.

The product

The screens your team opens every month-end

Three of the workspace pages, as they are in the platform. The full tour, module by module, is on the product page.

app.wtpdatalab.com/workspace/pension-funds
Pension fund overview: on-time delivery, open issues, missing files this week and the expected-file schedule

Fund overview

On-time delivery, open issues, missing files and the expected-file schedule, per fund, with the administrators that deliver for it.

app.wtpdatalab.com/workspace/administrators
API configuration of an administrator: inbound endpoint pattern, feedback inbound API and outbound delivery

API configuration

Counterparties post SIVI files to your inbound endpoint; validated files and feedback are delivered to theirs, with the method and authentication they require.

app.wtpdatalab.com/create-json/spr
Create JSON: the SPR pension form with schema version 001.05 and additional mandatory fields

Create and validate

Forms that know the schema version, the required fields and the code lists of all 16 messages, so nobody hand-edits JSON.

Built for every party in the chain

Pension administrators and APFs

Prove every SPR and FPR message to fiduciary and custodian is conformant, per fund and per compartment, before the transition audit asks.

Fiduciary managers

One validation layer across all fund clients, with the right release per client, so one non-conformance never multiplies across counterparties.

Investment administrators and custodians

Return information and unit values that pass first time, and a record of what each counterparty received and accepted.

Start with the free tools

The validator checks a message in your browser against both schema releases, the code lists and the consistency checks. The Kennisbank explains every message, entity, attribute, code list and error of the standard, in Dutch and English, generated from the official schemas. No account, no upload.

Kennisbank, at a glance
16messages21entities153attributes14code lists49errors with fixes26processes on the T-day line97glossary terms, NL and EN

Questions we get asked first

Does this replace or change our administration platform?

No. WTP Data Lab runs beside your system of record and only reads and validates what goes in and out. That is why a pilot clears outsourcing and IT-risk review in weeks.

Which releases of the standard are supported?

Release 2026 (schema 001.04) and Release 2027 (schema 001.05, pre-release of July 2026), side by side, so a chain can migrate one link at a time. New SIVI releases are added on their annual cycle.

What do we need for a first session?

One sample SPR or FPR message, real or synthetic. In 20 minutes we validate it live and walk through the report. No production data, no integration.

How does a pilot look?

One fund or compartment and one counterparty, read-only, with a report you can share with your board and auditor. Typically live within weeks.

Where does our data go?

Messages are processed in the platform under a data-processing agreement; the free validator runs entirely in your browser and uploads nothing.

See your own message validated in 20 minutes

Bring a sample SPR or FPR message. We validate it live against Release 2026 and 2027 and walk through the conformance and data-quality report.