You need to replace “ObjectID” with the actual object ID of the object.
-wim
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Not using the H, Rhino wrote with h between R and I. 
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Thank you, can you send this line as text?
It won’t work if you just copy the text, you need to put the actual object-id that is in your file into that formula.
That UUID only existed in the document that I created at that point, and the exact string won’t do you any good.
The formula example is from Convert strings to numbers
-wim
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Thank you very much
Where can you see it?
If you use the ‘what’ command on any object it should give you the ID of that object on the first line.
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