Странное ограничение FilterdAttributes в PluginRegistration

[S K]

Можно написать свою маленькую программку и выполнить ее.

public static Guid RegisterStep(CrmService.CrmService crmService, Guid pluginTypeID, string entityName, Guid sdkMessageID)
    {
        Guid sdkMessageFilterID = GetSdkMessageFilterID(crmService, entityName, sdkMessageID);
        if (sdkMessageFilterID == Guid.Empty)
            throw new Exception("Не удалось получить Guid messagefilter для EntityName = '" + entityName + "', sdkMessageID = '" + sdkMessageID + "'");

        sdkmessageprocessingstep step = new sdkmessageprocessingstep();
        step.plugintypeid = new Lookup();
        step.plugintypeid.Value = pluginTypeID;
        step.sdkmessagefilterid = new Lookup();
        step.sdkmessagefilterid.Value = sdkMessageFilterID;
        step.sdkmessageid = new Lookup();
        step.sdkmessageid.Value = sdkMessageID;

        step.description = "Auditing Plugin";
        step.invocationsource = new Picklist();
        step.invocationsource.Value = 0; // 0 (parent pipeline) or 1 (child pipeline)
        step.mode = new Picklist();
        step.mode.Value = Config.ModePluginExecution;
        step.rank = new CrmNumber();
        step.rank.Value = 0;
        step.stage = new Picklist();
        step.stage.Value = 50; // 10 (pre-event) or 50 (post-event)
        step.supporteddeployment = new Picklist();
        step.supporteddeployment.Value = 0; // 0 (server), 1 (Outlook client), or 2 (both)
        //Comma separated list of attributes that must be changed for the plug-in to be invoked. An empty list indicates all attributes
        step.filteringattributes = "";        
        //GUID of the system user account that the plug-in is to execute under.
        //step.ImpersonatingUserId = "";
        step.configuration = Config.SqlConnectionString;

        try
        {
            return crmService.Create(step);
        }
        catch (Exception ex)
        {
            throw new Exception("При регистрации шага произошла ошибка: " + ex.Message);
        }
    }

 public static Guid GetSdkMessageFilterID(CrmService.CrmService crmService, string entityName, Guid sdkMessageID)
    {
        QueryByAttribute query = new QueryByAttribute();
        ColumnSet cs = new ColumnSet();
        cs.Attributes = new string[] { "sdkmessagefilterid" };
        query.ColumnSet = cs;
        query.EntityName = EntityName.sdkmessagefilter.ToString();
        query.Attributes = new string[] { "primaryobjecttypecode", "sdkmessageid" };
        query.Values = new string[] { entityName.ToLower(), sdkMessageID.ToString() };
        BusinessEntityCollection bec;
        try
        {
            bec = crmService.RetrieveMultiple(query);
        }
        catch (Exception ex)
        {
            throw new Exception("При получении Guid messagefilter для EntityName = '" + entityName + "', sdkMessageID = '" + sdkMessageID + "' произошла ошибка: " + ex.Message);
        }
        if (bec.BusinessEntities != null && bec.BusinessEntities.Length > 0)
        {
            return ((sdkmessagefilter)bec.BusinessEntities[0]).sdkmessagefilterid.Value;
        }
        else
        {
            return Guid.Empty;
        }
    }

    public static Guid GetSdkMessageID(CrmService.CrmService crmService, string messageName)
    {
        QueryByAttribute query = new QueryByAttribute();
        ColumnSet cs = new ColumnSet();
        cs.Attributes = new string[] { "sdkmessageid" };
        query.ColumnSet = cs;
        query.EntityName = EntityName.sdkmessage.ToString();
        query.Attributes = new string[] { "name" };
        query.Values = new string[] { messageName };
        BusinessEntityCollection bec;
        try
        {
            bec = crmService.RetrieveMultiple(query);
        }
        catch (Exception ex)
        {
            throw new Exception("При получении Guid message '" + messageName + "' произошла ошибка: " + ex.Message);
        }
        if (bec.BusinessEntities != null && bec.BusinessEntities.Length > 0)
        {
            return ((sdkmessage)bec.BusinessEntities[0]).sdkmessageid.Value;
        }
        else
        {
            return Guid.Empty;
        }
    }