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I am using Script Lab for defining custom function in Excel. Even the most trivial function returns #BUSY result.

This is test funcition that returns #BUSY error.

/** @CustomFunction */
function add10(x: number): number {
 return x + 10;
}

I am using office 365 personal subscription if it makes any sence. Working on Windows 11 Pro x64

  • Are you working on Windows, on Mac, or on the Web? Also, please go through the custom functions quickstart at https://learn.microsoft.com/office/dev/add-ins/quickstarts/excel-custom-functions-quickstart on the same machine using the same subscription. Do you get the same symptoms? – Rick Kirkham Jul 10 '23 at 20:16
  • Windows 11 Pro x64 – Davit Margvelashvili Jul 10 '23 at 20:34
  • Custom Functions Quickstart works fine and registers predefined functions. They don't return #Busy error code – Davit Margvelashvili Jul 10 '23 at 20:52
  • 1
    In that case, it might be a bug in Script Lab. I recommend that you give the Stack community a couple of days to solve it. If you don't get a useful answer by then, you can create a bug in the [Script Lab](https://github.com/OfficeDev/script-lab/issues/new/choose) repo. – Rick Kirkham Jul 10 '23 at 21:07

0 Answers0