With inside App StartScreen will return this error "invocation of unknown or unsupported funtion"

[johnjohn123]

I have the following inside my App's StartScreen

with(
   { varRecord2:
    LookUp(
        'Online Credit Request',
        ID = Value(Param("onlinecreditrequestid"))
    )},

If(Param("custommode") = "new",'Screen1',
Param("custommode") = "edit" && !IsBlank(varRecord2),Screen1,Param("custommode") = "view" && !IsBlank(varRecord2),Screen1,Screen2
));

to redirect the users to screen1 or screen2 based if the varrecord2 is blank and based on some parameters. but i am getting this error "invocation of unknown or unsupported function" on the above formula? any advice?

Thanks

[v-xiaochen-msft · Accepted solution]

Hi @johnjohn123 ,

1\ Please use With instead of with.

2\ Delete the ';' at the end of your formula.

Best Regards,

Wearsky