Have you received this licensing error?
An error occurred in the activation request Operations error: 7109 Invalid activation ID:
You may encounter this error if you have incorrectly typed your activation ID, or if the system otherwise does not recognize the license code you have entered.
Some older versions of FlexSim also were not able to remove spaces or other whitespace from the beginning or end of the activation ID field, so be sure that any spaces or other extraneous characters are removed from both the beginning and ending of the license code text.
