External rule - not reading parameter from sheetmetal

[Charlies_3D_T]

Hello,

For some reason when i transfer a rule to an external rule it's not working. 

It's doesn't read the parameter Thickness. Someone any idea what i'm forgetting? 

If Parameter("Thickness") = "1.0" Or Parameter("Thickness") = "1.5" Or Parameter("Thickness") = "2" Or Parameter("Thickness") = "3" Or Parameter("Thickness") = "4" Then
	'iProperties.Value("Custom", "BendRadius_Ilogic") = 1 
	Parameter("BendRadius_Ilogic") = 1 

    MessageBox.Show(Parameter("BendRadius_Ilogic"), "Title")

ElseIf Parameter("Thickness") = "5" Or Parameter("Thickness") = "6.0" Or Parameter("Thickness") = "8" Or Parameter("Thickness") = "10" Or Parameter("Thickness") = "12" Or Parameter("Thickness") = "15" Or Parameter("Thickness") = "20" Then
    'iProperties.Value("Custom", "BendRadius_Ilogic") = 4 
	Parameter("BendRadius_Ilogic") = 4 
	
	MessageBox.Show(Parameter("BendRadius_Ilogic"), "Title")

Else 
	
	MessageBox.Show("Error in thickness rule", "Title")
	
End If

[bradeneuropeArthur]

How do you call/run your external rule?

For me it works when I use this in an external rule!

iLogicVb.RunExternalRule("xyz")

Regards