Here is new way to generate hyperlinks for SSRS reports in D365O

For the action on the textbox:
=Microsoft.Dynamics.Framework.Reports.BuiltInMethods.GenerateDrillThroughLink(
Parameters!AX_ReportContext.Value, 
Parameters!AX_UserContext.Value, 





[, , ])


The name of the menu item target for the hyperlink


The type of the menu item target for the hyperlink (e.g. “Display”)


The name of the table referenced by the target menu item


The name of the field in the table to restrict


The value of the field in the table to restrict

Optional
Additional
and pairs as needed


Example:

=Microsoft.Dynamics.Framework.Reports.BuiltInMethods.GenerateDrillThroughLink(
Parameters!AX_ReportContext.Value,
Parameters!AX_UserContext.Value,
"MenuItemname",
"Display",
"CustInvoiceJour",
"InvoiceId",
Fields!InvoiceId.Value)

Also, you must add this method to the form that the menu item opens (the error message doesn’t tell you this):

public boolean isRootNavigable()
{
boolean ret;

ret = true;

}