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4 min readBlockingEIOPA taxonomy 2.10.0Updated 11 November 2026

"Asset ID Code and Type of code" (S.06.02.01.02 C0040) follows "^CAU/ISIN/*" but ISIN is invalid or currency code is invalid (S.06.02, S.08.01, S.06.03, EIOPA rule BV1386)

A blocking check on the list of assets (S.06.02), open derivatives (S.08.01) and collective investment undertakings - look-through approach (S.06.03) templates, in the quarterly solo (QRS), quarterly group (QRG) and quarterly branch (QRB) returns.

It applies to 2.8.2 returns too, the release for the 2026 returns, and Line4 Check runs it there as well.

Check your file for this ruleWhat to do if it fails

The rule in plain words

"Asset ID Code and Type of code" (S.06.02.01.02 C0040) follows "^CAU/ISIN/*" but ISIN is invalid or currency code is invalid

What to do if your return fails it

  1. 01Open the tables below and find the cells the rule reads.
  2. 02Compare the code or text in your return with the format the rule sets out, character by character, including any prefix and any spaces.
  3. 03This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

List of assets: information on positions held (S.06.02.01.01)

Columns

  • C0060Portfolio
  • C0090Asset held in unit linked and index linked contracts
  • C0100Asset pledged as collateral
  • C0110Country of custody
  • C0130Quantity
  • C0140Par amount
  • C0145Long-term equity investment
  • C0150Valuation method
  • C0160Acquisition value
  • C0170Total Solvency II amount
  • C0180Accrued interest

List of assets: information on assets (S.06.02.01.02)

Columns

  • C0190Item Title
  • C0200Issuer Name
  • C0210Issuer Code and Type of code
  • C0230Issuer Sector
  • C0240Issuer Group
  • C0250Issuer Group Code and Type of code
  • C0270Issuer Country
  • C0280Currency
  • C0290CIC
  • C0292SCR calculation approach for CIU
  • C0293Bail-in rules
  • C0294Regional Governments and Local Authorities (RGLA)
  • C0295Crypto-assets
  • C0296Property type
  • C0297Property location
  • C0298Alternative investment
  • C0300Infrastructure investment
  • C0310Holdings in related undertakings, including participations
  • C0320External rating
  • C0330Nominated ECAI
  • C0340Credit quality step
  • C0350Internal rating
  • C0360Duration
  • C0370Unit Solvency II price
  • C0380Unit percentage of par amount Solvency II price
  • C0390Maturity date

List of assets: information on positions held (S.06.02.04.01)

Columns

  • C0010Legal name of the undertaking
  • C0060Portfolio
  • C0090Asset held in unit linked and index linked contracts
  • C0100Asset pledged as collateral
  • C0110Country of custody
  • C0130Quantity
  • C0140Par amount
  • C0145Long-term equity investment
  • C0150Valuation method
  • C0160Acquisition value
  • C0170Total Solvency II amount
  • C0180Accrued interest

List of assets: information on assets (S.06.02.04.02)

Columns

  • C0190Item Title
  • C0200Issuer Name
  • C0210Issuer Code and Type of code
  • C0230Issuer Sector
  • C0240Issuer Group
  • C0250Issuer Group Code and Type of code
  • C0270Issuer Country
  • C0280Currency
  • C0290CIC
  • C0293Bail-in rules
  • C0294Regional Governments and Local Authorities (RGLA)
  • C0295Crypto-assets
  • C0296Property type
  • C0297Property location
  • C0298Alternative investment
  • C0300Infrastructure investment
  • C0310Holdings in related undertakings, including participations
  • C0320External rating
  • C0330Nominated ECAI
  • C0340Credit quality step
  • C0350Internal rating
  • C0360Duration
  • C0370Unit Solvency II price
  • C0380Unit percentage of par amount Solvency II price
  • C0390Maturity date

List of assets: information on positions held (S.06.02.07.01)

Columns

  • C0060Portfolio
  • C0090Asset held in unit linked and index linked contracts
  • C0100Asset pledged as collateral
  • C0110Country of custody
  • C0130Quantity
  • C0140Par amount
  • C0145Long-term equity investment
  • C0150Valuation method
  • C0160Acquisition value
  • C0170Total Solvency II amount
  • C0180Accrued interest
  • C0400Deposit lodged as security in accordance with Article 162 (2)(e)
  • C0410Confirmation that there are no rights of set off

List of assets: information on assets (S.06.02.07.02)

Columns

  • C0190Item Title
  • C0200Issuer Name
  • C0210Issuer Code and Type of code
  • C0230Issuer Sector
  • C0240Issuer Group
  • C0250Issuer Group Code and Type of code
  • C0270Issuer Country
  • C0280Currency
  • C0290CIC
  • C0292SCR calculation approach for CIU
  • C0293Bail-in rules
  • C0294Regional Governments and Local Authorities (RGLA)
  • C0295Crypto-assets
  • C0296Property type
  • C0297Property location
  • C0298Alternative investment
  • C0300Infrastructure investment
  • C0310Holdings in related undertakings, including participations
  • C0320External rating
  • C0330Nominated ECAI
  • C0340Credit quality step
  • C0350Internal rating
  • C0360Duration
  • C0370Unit Solvency II price
  • C0380Unit percentage of par amount Solvency II price
  • C0390Maturity date

Collective investment undertakings - look-through approach (S.06.03.01.01)

Columns

  • C0030Underlying asset category
  • C0040Country of issue
  • C0050Currency
  • C0060Total amount

Collective investment undertakings - look-through approach (S.06.03.04.01)

Columns

  • C0030Underlying asset category
  • C0040Country of issue
  • C0050Currency
  • C0060Total amount

Open derivatives: information on positions held (S.08.01.01.01)

Columns

  • C0041Unique Transactions Identifier
  • C0060Portfolio
  • C0080Derivatives held in index-linked and unit-linked contracts
  • C0110Use of derivative
  • C0131Notional amount of the derivative
  • C0140Buyer / Seller
  • C0150Premium paid to date
  • C0160Premium received to date
  • C0170Number of contracts
  • C0180Contract size
  • C0190Maximum loss under unwinding event
  • C0200Swap outflow amount
  • C0210Swap inflow amount
  • C0220Initial date
  • C0230Duration
  • C0240Solvency II value
  • C0250Valuation method

Open derivatives: information on derivatives (S.08.01.01.02)

Columns

  • C0260Counterparty Name
  • C0270Counterparty Code and Type of code
  • C0290External rating
  • C0300Nominated ECAI
  • C0310Credit quality step
  • C0320Internal rating
  • C0330Counterparty Group
  • C0340Counterparty group code and type of code
  • C0360Contract name
  • C0370Currency
  • C0371Currency of price
  • C0380CIC
  • C0390Trigger value
  • C0400Unwind trigger of contract
  • C0430Maturity date
  • C0450Swap delivered
  • C0460Swap received

Open derivatives: information on positions held (S.08.01.04.01)

Columns

  • C0010Legal name of the undertaking
  • C0041Unique Transactions Identifier
  • C0060Portfolio
  • C0080Derivatives held in index-linked and unit-linked contracts
  • C0110Use of derivative
  • C0131Notional amount of the derivative
  • C0140Buyer / Seller
  • C0150Premium paid to date
  • C0160Premium received to date
  • C0170Number of contracts
  • C0180Contract size
  • C0190Maximum loss under unwinding event
  • C0200Swap outflow amount
  • C0210Swap inflow amount
  • C0220Initial date
  • C0230Duration
  • C0240Solvency II value
  • C0250Valuation method

Open derivatives: information on derivatives (S.08.01.04.02)

Columns

  • C0260Counterparty Name
  • C0270Counterparty Code and Type of code
  • C0290External rating
  • C0300Nominated ECAI
  • C0310Credit quality step
  • C0320Internal rating
  • C0330Counterparty Group
  • C0340Counterparty group code and type of code
  • C0360Contract name
  • C0370Currency
  • C0371Currency of price
  • C0380CIC
  • C0390Trigger value
  • C0400Unwind trigger of contract
  • C0430Maturity date
  • C0450Swap delivered
  • C0460Swap received

Which returns it applies to

Line4 Check runs it on quarterly solo (QRS), quarterly group (QRG) and quarterly branch (QRB) returns on EIOPA taxonomy 2.10.0. EIOPA applies it to quarterly ECB branch (QEB), quarterly ECB solo (QES), annual branch (ARB), annual solo (ARS), financial stability group (QFG), quarterly group (QRG), financial stability solo (QFS), financial stability branch (QFB), quarterly branch (QRB), quarterly solo (QRS), annual ECB solo (AES), annual ECB branch (AEB) and annual group (ARG) returns, as a blocking check.

EIOPA’s own words and formula

In EIOPA’s list of validations, word for word:

dim:UI follows "^CAU/ISIN/*" but ISIN is invalid or currency code is invalid.
Show the formulaShow

EIOPA's formula. Cells are written as {t: table, r: row, c: column}.

if (matches(dim({d: [s2c_dim:UI]},[s2c_dim:UI]), "^CAU/ISIN/.*")) then isinChecksum(substring(dim({d: [s2c_dim:UI]},[s2c_dim:UI]), 10, 12)) and matches(substring(dim({d: [s2c_dim:UI]},[s2c_dim:UI]), 22), "^\+(EUR|AED|AFN|ALL|AMD|ANG|AOA|ARS|AUD|AWG|AZN|BAM|BBD|BDT|BGN|BHD|BIF|BMD|BND|BOB|BOV|BRL|BSD|BTN|BWP|BYN|BYR|BZD|CAD|CDF|CHE|CHF|CHW|CLF|CLP|CNY|COP|COU|CRC|CUC|CUP|CVE|CZK|DJF|DKK|DOP|DZD|EEK|EGP|ERN|ETB|FJD|FKP|GBP|GEL|GHS|GIP|GMD|GNF|GTQ|GYD|HKD|HNL|HRK|HTG|HUF|IDR|ILS|INR|IQD|IRR|ISK|JMD|JOD|JPY|KES|KGS|KHR|KMF|KPW|KRW|KWD|KYD|KZT|LAK|LBP|LKR|LRD|LSL|LTL|LVL|LYD|MAD|MDL|MGA|MKD|MMK|MNT|MOP|MRO|MRU|MUR|MVR|MWK|MXN|MXV|MYR|MZN|NAD|NGN|NIO|NOK|NPR|NZD|OMR|PAB|PEN|PGK|PHP|PKR|PLN|PYG|QAR|RON|RSD|RUB|RWF|SAR|SBD|SCR|SDG|SEK|SGD|SHP|SLE|SOS|SRD|SSP|STD|STN|SVC|SYP|SZL|THB|TJS|TMT|TND|TOP|TRY|TTD|TWD|TZS|UAH|UGX|USD|USN|USS|UYI|UYU|UYW|UZS|VES|VND|VUV|WST|XAF|XAG|XAU|XBA|XBB|XBC|XBD|XCD|XDR|XFU|XOF|XPD|XPF|XPT|XSU|XTS|XUA|YER|ZAR|ZMK|ZMW|ZWL)$") else true()

Every Solvency II rule on S.06.02

Checks like this one, run at the point of submission, are the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.