I want to make a button to open a particular set of records in a navigation subform. The Macro wasnt working for me and I think its because my where condition is too long. So I am trying VBA instead using DoCmd.OpenForm The VBA I am using (unsuccessfully) isI'm getting an error message saying I need a valid form argument. I'm a bit of a scrub at VBA so I'm fairly sure I've just done something dumb and I'm hoping one of you can set me straight.Code:DoCmd.OpenForm frmRCRViewClaimEdits, acNormal, qADTeamSummaryBtn, "Team" & [Forms]![MainMenu]![btnManagersMenu].[Form]![NavigationSubform].[Form].[cmbTeam]