1 min readBlockingEIOPA taxonomy 2.10.0Updated 11 November 2026

If {S.04.03, c0010} is reported then one and only one columns has to be head of office (S.01.01, S.04.03, EIOPA rule BV1860_1)

A blocking check on the content of the submission (S.01.01) and basic information - list of underwriting entities (S.04.03) templates, in the annual solo (ARS) return.

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

The rule in plain words

if {S.04.03, c0010} is reported then one and only one columns has to be head of office

What to do if your return fails it

  1. 01Open the tables below and find the cells the rule reads.
  2. 02The check applies only when its first part holds in your return. When it does, the second part must hold too: fix the second part, or correct the first.
  3. 03It runs only when your filing indicators mark S.01.01 and S.04.03 as reported.
  4. 04This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Content of the submission (S.01.01.01.01)

Row

  • R0104S.04.03.01 - Basic Information - list of underwriting entities

Column

  • C0010Reporting status

Basic information - list of underwriting entities: list of underwriting entities (S.04.03.01.01)

Column

  • C0020Type of underwriting entity

Which returns it applies to

Line4 Check runs it on annual solo (ARS) return on EIOPA taxonomy 2.10.0. EIOPA applies it to annual solo (ARS) returns, as a blocking check.

EIOPA’s own words and formula

The plain words above are EIOPA’s own, word for word, from its list of validations.

Show the formulaShow

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

if {t: S.01.01.01.01, r: R0104, c: C0010} = [s2c_CN:x1] then count({t: S.04.03.01.01, c: C0020}) = 1 else true()

Every Solvency II rule on S.01.01

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.