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I do not have the variables of your drawing file, so I can not test the rule in depth. But I want to ask you something ... Are you using the external rule in a new file? keep in mind that the line


oThisFileName = ThisDoc.FileName (False) & Extentie


it refers to the file in which the rule is made (which is supposed to be a drawing file, but in the if - then rules it specifies that it can be an ipt or a iam). If the file is not saved the filename will be "" nothing. I suppose that for this place the error should be, the access to the project file seems to be fine.
regards


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I am attaching my Upwork profile for specific queries.

Sergio Daniel Suarez
Mechanical Designer

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