After/Before the Upgrade, if the plug-in behaves abnormally OR the user forgets to set the “
Replace on upgrade
” flag then check the Skipped and Skipped Manual Merge records in the Upgrade History

The records will fall into Skipped and Skipped Manual Merge if the user forgets to update the
Replace on upgrade
flag.
The plug-in will behave abnormally when records will fall into skipped and skipped manual merge if the user skips setting the “
Replace on upgrade
” flag for customized records.
The records will fall into Skipped and Skipped Manual Merge in table
sys_upgrade_history_log
.
You need to perform the following steps:
  1. Navigate to plug-in and click
    View upgrade history
    . The
    Upgrade Details
    page will open.
  2. Under the
    Skipped Changes to Review
    tab, find all the Skipped Manual Merge, and Skipped records that are listed. 
  3. Open each one of the records and click the
    Resolve Conflicts
    button to verify if there are any conflicts in the
    Customized
    record compared to the
    Base System
    record.
  4. Go back to the
    Upgrade Details
    page and click the
    Revert to Base System
    button.
If you have any customized record for the plug-in, you must copy your customizations and mark that record to
Revert to base System
and update again as per your customization.