The following will be added to the coverage request message bvmf.150: distribution fields and ISIN sources for assets undergoing corporate actions with change in the final ISIN. The benefit of this improvement is the possibility of choosing, on a monthly basis, the asset that will be used to query the balance in the central depository in case it is undergoing a corporate action. Currently this query is only possible via screen. With the process becoming automated, the coverage will be carried out even faster via message.