[Thermo Scientific License Manager]
Issue & Reason
The License Manager uses the Unique Machine Number (UMN) to validate the identity of the machine that initiated the request.
The Unique Machine Number value is retrieved from your system hardware information or from hypervisor-controlled information for virtual machines.
If your system hardware is modified since the original activation, the UMN of your machine can be changed and the License Manager will consider your machine to be a different machine. Consequently, the following error message may appear:
"Trying to return a fulfillment issued to a different machine."
Suggested Solution
If this error message occurs, contact the Customer Support team for assistance (see the article KA-01188 "How to send technical/license questions to the VDS Customer Support team").