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SCCM - Machines not discovered which are loggedin below last 90 days.

SripathiR 1 Reputation point
2021-08-31T14:10:32.59+00:00

SCCM - Machines not discovered which are logged in below last 90 days(from AD report).

Microsoft Configuration Manager
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  1. AllenLiu-MSFT 46,451 Reputation points Microsoft Vendor
    2021-09-01T02:48:23.39+00:00

    Hi, @SripathiR
    Thank you for posting in Microsoft Q&A forum.

    That is because the site maintenance task: Delete Aged Discovery Data.
    It is enabled and set as 90 days by default.
    128105-1.jpg

    For for detailed information:
    https://learn.microsoft.com/en-us/mem/configmgr/core/servers/manage/reference-for-maintenance-tasks#delete-aged-discovery-data

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    1 person found this answer helpful.
  2. Jason Sandys 31,311 Reputation points Microsoft Employee
    2021-08-31T14:46:04.287+00:00

    Do you have AD System Discovery enabled?

    Do the systems exist in an OU that AD System Discovery is configured to discover systems from?

    Do the systems properly resolve via DNS from the primary site server?

    Have you reviewed adsysdis.log?

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