Personalize List Columns Show Deleted Columns as AvailableDescription Active table columns appear in the 'Personalize List Columns' slush bucket. Sometimes there can be a scenario where the columns no longer exist in the metadata table but still appear under 'Available' column list on the slush bucket. We'll show you how to resolve this issue. CauseThe underlying cause in this context points to the orphan records left behind in the metadata table. ResolutionThe resolution process starts by verifying the existence of the column in sys_dictionary, sys_documentation and sys_storage_alias tables. Typically it is seen that there are orphan records on one of the metadata tables. Once the orphan records are located, they should be deleted via a change request and the relevant tables should be refreshed. For example, as seen in the screenshot, 'test_column' from the Incident table needs to be removed from the slush bucket, which had an orphan record in sys_storage_alias. So when that record is deleted, both the Task and the sys_storage_alias tables must be refreshed to fully accomplish the goal. GlideTableManager.invalidateTable('sys_storage_alias'); GlideCacheManager.flushTable('sys_storage_alias'); GlideTableManager.invalidateTable('task'); GlideCacheManager.flushTable('task');