ESMA published its Final Report on the reporting to competent authorities under Article 37 of the MMF Regulation on 19 July 2019, providing the detailed guidance needed to translate the MMFR reporting framework into practical implementation requirements for asset managers. The report sets out reporting specifications, field definitions, validation principles, and technical instructions designed to support consistent submissions across the European Union. With the first reporting cycles approaching, the focus is shifting from understanding the rules to making them work operationally.

The new guidance introduces a structured reporting framework, including data definitions, validation rules and technical submission formats. While this brings clarity, it also exposes how far many organisations still are from having a fully aligned reporting setup.

For most firms, the challenge is not a lack of understanding, but the reality of existing systems. Data sits in different places, definitions are not always consistent, and processes have not been designed with regulatory reporting in mind. What looks straightforward on paper quickly becomes more complex when applied to real portfolios.

As implementation work begins, several practical issues are becoming visible:

  • Required data is often distributed across multiple systems, making consolidation more complex than expected
  • Internal data definitions do not always match regulatory requirements, requiring interpretation and adjustment
  • Validation rules introduce additional control steps, increasing operational effort
  • New technical formats such as XML require changes to existing reporting infrastructure
  • Multiple teams are involved, which can lead to unclear ownership and coordination challenges

These early experiences suggest that MMFR reporting will not be a one-time implementation project. Instead, it will require a setup that can be repeated consistently, with clear processes and responsibilities in place.

Firms that approach this as a structured operating challenge — rather than a pure reporting task — are likely to adapt more quickly. Bringing data, validation and report production into a single, coordinated workflow can significantly reduce complexity and improve reliability over time.

As the first submissions approach, one thing becomes clear: MMFR reporting is less about the template itself, and more about building a process that works every time.