Hi @Heba Wagih ,
depending on the SCSM version the activation can be done this way: https://learn.microsoft.com/en-us/system-center/scsm/sm-license?view=sc-sm-2019
This is for SCSM 1801 and later.
As far as I know there are two options for older SCSM versions to activate a evaluation version:
- Re-install the SCSM
- Open a support request with Microsoft
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Regards
Andreas Baumgarten