Release 2026 · Schema version001.04 · Discontinued in Release 2027

SIVI message 12 (00555a): Value information cohort pool (VB-PUO)

In Release 2026 message 12 carried the unit values per investment pool and the participation values per cohort pool. In Release 2027 it has been discontinued together with the cohort-pool layer; the value information per investment pool is in message 13.

Sender

Administrator of the cohort and investment pools

Receiver

Fiduciary manager (FM) and pension administrator (PUO)

Timing

Monthly (Release 2026)

Arrangement

FPR model 2 (layered order model)

afdDefinitionName

VBPUO-001.04-Bericht_12._Waarde-informatie_cohortenpool_(00555a)

Message structure

Entities with cardinality [min..max] and number of attributes; click for the entity page.

chunking.default[0..1] · 4 attr.
commonFunctional.default[1..1] · 4 attr.
commonTechnical.default[1..1] · 3 attr.
- party.receiver[1..1] · 3 attr.
- party.sender[1..1] · 4 attr.
  - party.contact[0..9] · 2 attr.
document.default[0..99] · 3 attr.
party.pensionProvider[1..1] · 3 attr.
- pension.scheme[1..999] · 2 attr.
  - financialInformation.reportingPeriod[1..1] · 1 attr.
  - pension.cohortPool[1..99] · 6 attr.

Attributes(35)

Entity	Attribute	Type	V/O	Code list	Description
chunking.default	currentChunkId	string	V		Unique reference (id) of the current chunk.
chunking.default	chunkSequenceNumber	integer	V		Sequence number of the current chunk.
chunking.default	totalNumberOfChunks	integer	V		Total number of chunks the message has been split into.
chunking.default	chunkFragmentPaths	array[string]	V		Array of JMESPath references to the message fragments used within the current chunk.
commonFunctional.default	afdDefinitionName	string · max 80	V		Name of the AFD-definition.
commonFunctional.default	afdDefinitionVersion	string · max 80	V	001.04	Version of the AFD-definition.
commonFunctional.default	originalMessageId	string · max 70	O		The messageId of the original message, which is replaced by this message.
commonFunctional.default	function	string	V	ADNFUN	Message function
commonTechnical.default	creationDateTime	string · format date-time	V		Creation date and time (as timestamp) of the (for example) message, system or file. (AFD 2.0 only)
commonTechnical.default	messageId	string · max 70	V		Unique identification of the message. (AFD 2.0 only)
commonTechnical.default	testMessage	boolean	O		Indication whether the message is a test message.
party.receiver	refKey	string · max 70	V		Unique reference key assigned to an entity.
party.receiver	organizationName	string · max 60	V		Name of professional or branch organization.
party.receiver	rsinNumber	string · max 9	O		Governmental identification number for legal entities and associations. (AFD 2.0 only)
party.sender	refKey	string · max 70	V		Unique reference key assigned to an entity.
party.sender	applicationSenderName	string · max 60	O		Name of the application that sends the data.
party.sender	organizationName	string · max 60	V		Name of professional or branch organization.
party.sender	rsinNumber	string · max 9	O		Governmental identification number for legal entities and associations. (AFD 2.0 only)
party.contact	workPhoneNumber	string · max 60	V		Work telephone number.
party.contact	emailWork	string · max 60	V		Work email address.
document.default	refKey	string · max 70	V		Unique reference key assigned to an entity.
document.default	fileName	string · max 60	V		Name of the file under which the attachment can be saved.
document.default	fileExtension	string	V	pdf \| csv \| txt	Extension of the file under which the attachment can be saved. For example "pdf", "doc", etc.
party.pensionProvider	organizationName	string · max 60	V		Name of professional or branch organization.
party.pensionProvider	rsinNumber	string · max 9	O		Governmental identification number for legal entities and associations. (AFD 2.0 only)
party.pensionProvider	puvCode	string	V	AFDIDP	Pension provider
pension.scheme	refKey	string · max 70	V		Unique reference key assigned to an entity.
pension.scheme	pensionSchemeName	string · max 60	V		Name of the pension scheme.
financialInformation.reportingPeriod	participationValuationDate	string · format date	V		Valuation date of the participation value (per cohort).
pension.cohortPool	refKey	string · max 70	V		Unique reference key assigned to an entity.
pension.cohortPool	description	string · max 60	V		Description.
pension.cohortPool	currencyType	string	V	ISOVAL	Currency
pension.cohortPool	cohortRef	string · max 70	O		Unique referral to the refKey of one or more pension entities with entityType cohort. (AFD 2.0 only)
pension.cohortPool	numberOfParticipations	number · multipleOf 0.000001	O		Number of participations.
pension.cohortPool	participationsSummedValueAmount	number · multipleOf 0.01	V		Value per cohort pool (sum of participation values) per valuation date.

Sample message

✓ Validated against schema VBPUO-001.04 · 2026-09-05

Sample source: Gegenereerd door WTP Data Lab. Values are fictitious.

{
  "commonFunctional": [
    {
      "entityType": "default",
      "afdDefinitionName": "VBPUO-001.04-Bericht_12._Waarde-informatie_cohortenpool_(00555a)",
      "afdDefinitionVersion": "001.04",
      "function": "01"
    }
  ],
  "commonTechnical": [
    {
      "entityType": "default",
      "creationDateTime": "2026-09-30T17:00:00+02:00",
      "messageId": "00555A-20260930-000001",
      "testMessage": true,
      "party": [
        {
          "entityType": "receiver",
          "refKey": "RECEIVER-001",
          "organizationName": "Fiduciair Beheer Voorbeeld N.V.",
          "rsinNumber": "123456789"
        },
        {
          "entityType": "sender",
          "refKey": "SENDER-002",
          "applicationSenderName": "WTP Data Lab",
          "organizationName": "Pensioenuitvoeringsorganisatie Voorbeeld B.V.",
          "rsinNumber": "123456789",
          "party": [
            {
              "entityType": "contact",
              "workPhoneNumber": "+31201234567",
              "emailWork": "[email protected]"
            }
          ]
        }
      ]
    }
  ],
  "party": [
    {
      "entityType": "pensionProvider",
      "organizationName": "Stichting Pensioenfonds Voorbeeld",
      "rsinNumber": "123456789",
      "puvCode": "U0003",
      "pension": [
        {
          "entityType": "scheme",
          "refKey": "SCHEME-003",
          "pensionSchemeName": "Solidaire premieregeling Voorbeeld",
          "financialInformation": [
            {
              "entityType": "reportingPeriod",
              "participationValuationDate": "2026-09-30"
            }
          ],
          "pension": [
            {
              "entityType": "cohortPool",
              "refKey": "COHORTPO-004",
              "description": "Cohort 25-34",
              "currencyType": "AED",
              "cohortRef": "voorbeeld",
              "numberOfParticipations": 1000,
              "participationsSummedValueAmount": 1000
            }
          ]
        }
      ]
    }
  ]
}

Rules and consistency checks

Discontinued as of Release 2027 (issues #99, #119, #121).

Pitfalls

Participation values per cohort pool are no longer exchanged in a standardised way in Release 2027; whoever needs them derives them from message 13 and their own cohort administration.

Errors and fixes

Discontinued message (7, 8, 9, 11 or 12) sent under Release 2027The receiver on Release 2027 does not know the message type: 404 on the endpoint or a rejection on afdDefinitionName.

Frequently asked questions

Is 00555a the same as 00555b?

No. 00555a (cohort pool) is discontinued; 00555b (investment pool) is active and carries the unit values.

Change history

v1.4.0 (Release 2027): discontinued.

Schema file: VBPUO-001.00-Bericht_12._Waarde-informatie_cohortenpool_(00555a)_v4.json · JSON-schema (001.04) · GitHub