Why do I receive an error that my license number or activation key does not match any existing license number or activation key?

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MathWorks Support Team
编辑： MathWorks Support Team 2023-8-18
Why do I receive the following error message when trying to link my MathWorks Account to my license:
The license number or activation key did not match any existing license number or activation key. Please try again.

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MathWorks Support Team
编辑：MathWorks Support Team 2023-8-18
This error will occur when you try to link your MathWorks Account to a license that is no longer active or a trial license. Please try to activate with a current MATLAB license.

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