Line4

1 min readWarningEBA reporting framework 4.2Updated 10 November 2026

If the largest of seven values is more than zero, total event types cannot be less than the largest of seven values (EBA rule v4863_m)

A warning in the own funds and capital requirements return (COREP own funds), on template C 17.01.a, operational risk: losses and recoveries by business lines and event types in the last year.

Check your file against this ruleWhat to do if it fails

The rule in plain words

If the largest of seven values is more than zero, total event types cannot be less than the largest of seven values.

All the values are in the maximum single loss row (0950) of C 17.01.a.

How the Line4 Check report words itShow

Word for word as the report shows it when the rule fails.

If the largest of Maximum single loss, INTERNAL FRAUD, Maximum single loss, EXTERNAL FRAUD, Maximum single loss, EMPLOYMENT PRACTICES AND WORKPLACE SAFETY, Maximum single loss, CLIENTS, PRODUCTS & BUSINESS PRACTICES, Maximum single loss, DAMAGE TO PHYSICAL ASSETS, Maximum single loss, BUSINESS DISRUPTION AND SYSTEM FAILURES and Maximum single loss, EXECUTION, DELIVERY & PROCESS MANAGEMENT > 0, then Maximum single loss, TOTAL EVENT TYPES >= the largest of Maximum single loss, INTERNAL FRAUD, Maximum single loss, EXTERNAL FRAUD, Maximum single loss, EMPLOYMENT PRACTICES AND WORKPLACE SAFETY, Maximum single loss, CLIENTS, PRODUCTS & BUSINESS PRACTICES, Maximum single loss, DAMAGE TO PHYSICAL ASSETS, Maximum single loss, BUSINESS DISRUPTION AND SYSTEM FAILURES and Maximum single loss, EXECUTION, DELIVERY & PROCESS MANAGEMENT

What to do if your filing fails it

  1. 01Open the template below and find the cells the rule reads.
  2. 02The check applies only when its first part holds in your file. When it does, the second part must hold too: fix the second part, or correct the first.
  3. 03EBA allows a small rounding difference, worked out from the decimals each value is reported with.
  4. 04It runs only when your filing indicators mark C 17.01 as reported.
  5. 05This is a warning. It does not stop the filing on its own, but your authority may ask you to explain it.

The cells it reads

Operational risk: losses and recoveries by business lines and event types in the last year (C 17.01.a)

Row

  • 0950Maximum single loss

Columns

  • 0010INTERNAL FRAUD
  • 0020EXTERNAL FRAUD
  • 0030EMPLOYMENT PRACTICES AND WORKPLACE SAFETY
  • 0040CLIENTS, PRODUCTS & BUSINESS PRACTICES
  • 0050DAMAGE TO PHYSICAL ASSETS
  • 0060BUSINESS DISRUPTION AND SYSTEM FAILURES
  • 0070EXECUTION, DELIVERY & PROCESS MANAGEMENT
  • 0080TOTAL EVENT TYPES
Show the rule as writtenShow

EBA's formula. Cells are written as {template, row, column, sheet}.

if (max({C_17.01.a,r0950,c0010,},{C_17.01.a,r0950,c0020,},{C_17.01.a,r0950,c0030,},{C_17.01.a,r0950,c0040,},{C_17.01.a,r0950,c0050,},{C_17.01.a,r0950,c0060,},{C_17.01.a,r0950,c0070,}) > 0) then ({C_17.01.a,r0950,c0080,} >= max({C_17.01.a,r0950,c0010,},{C_17.01.a,r0950,c0020,},{C_17.01.a,r0950,c0030,},{C_17.01.a,r0950,c0040,},{C_17.01.a,r0950,c0050,},{C_17.01.a,r0950,c0060,},{C_17.01.a,r0950,c0070,})) else True

Every COREP own funds rule, by template

Checks like this one, run at the point of submission, are the first step to real-time supervision.