Keep a dated transition register that lets a reviewer reconstruct the decision. Identify the product and configuration, whether it is machinery, a related product, or partly completed machinery, the manufacturer and other economic operators, the first EU placement or putting-into-service evidence, the Directive or Regulation basis, and every open condition.
Link the register to the risk assessment, essential health and safety requirement mapping, exact standards references, verification results, conformity procedure, technical documentation, instructions, declaration of conformity or incorporation, CE marking check where applicable, certificate status, and change log. State assumptions and unresolved issues instead of recording them as settled facts.