How to add a new report for a business document in D365

My colleague Rod showed it to me when I needed to add a new report to Project Invoice Proposal with billing rules to be present in Print management settings.

    /// <summary>
    /// Subscribes to print mgmt report format publisher to populate custom reports
    /// </summary>
    [SubscribesTo(classstr(PrintMgmtReportFormatPublisher), delegatestr(PrintMgmtReportFormatPublisher, notifyPopulate))]
    public static void notifyPopulate()
    {
        #PrintMgmtSetup

        void addFormat(PrintMgmtDocumentType _type, PrintMgmtReportFormatName _name, PrintMgmtReportFormatCountryRegionId _countryRegionId = #NoCountryRegionId)
        {
            myPrintMgtDocType_ProjInvReport_Handler::addPrintMgmtReportFormat(_type, _name, _name, _countryRegionId);
        }

        addFormat(PrintMgmtDocumentType::myProjInvoiceWithBR, ssrsReportStr(myPSAContractLineInvoice, Report));
    }

    /// <summary>
    /// Adds a report format to the printMgtReportFormat table
    /// </summary>
    /// <param name = "_type">PrintMgmtDocumentType value</param>
    /// <param name = "_name">Name of the report (ie. reportname.Report)</param>
    /// <param name = "_description">Description of the report (ie. reportname.Report)</param>
    /// <param name = "_countryRegionId">Country or default (#NoCountryRegionId)</param>
    /// <param name = "_system">True if this is a system report</param>
    /// <param name = "_ssrs">SSRS report or another type</param>
    private static void addPrintMgmtReportFormat(
        PrintMgmtDocumentType _type,
        PrintMgmtReportFormatName _name,
        PrintMgmtReportFormatDescription _description,
        PrintMgmtReportFormatCountryRegionId _countryRegionId,
        PrintMgmtReportFormatSystem _system = false,
        PrintMgmtSSRS _ssrs = PrintMgmtSSRS::SSRS)
    {
        PrintMgmtReportFormat printMgmtReportFormat;

        select firstonly printMgmtReportFormat
            where printMgmtReportFormat.DocumentType == _type
                && printMgmtReportFormat.Description == _description
                && printMgmtReportFormat.CountryRegionId == _countryRegionId;

        if (!printMgmtReportFormat)
        {
            // Add the new format
            printMgmtReportFormat.clear();
            printMgmtReportFormat.DocumentType = _type;
            printMgmtReportFormat.Name = _name;
            printMgmtReportFormat.Description = _description;
            printMgmtReportFormat.CountryRegionId = _countryRegionId;
            printMgmtReportFormat.System = _system;
            printMgmtReportFormat.ssrs = _ssrs;
            printMgmtReportFormat.insert();
        }
    }

Then I can pick it up in Print management settings in Project module.

It may be a good idea to delete records from PrintMgmtReportFormat table; all its records will be recreated the next time you open Print management form.