not in your current design. if you want to handle runtime errors, you have
to use VBA code rather than macros.
suggest you use a form control reference in your query, rather than a
use an unbound textbox control in the form, so the user can enter the value.
add a command button to the form, to run the OpenQuery macro. you can set a
condition on the macro action, such as
[ControlName] Is Not Null
that way the query won't run unless the user enters a value in the textbox
control AND clicks the command button.