Data Loader can be used to disable multiple portal user. The process involves exporting portal user records, setting their IsPortalEnabled value to false, and performing an update via Data Loader using the newly saved file.
Note: Once a portal user has been disabled, it cannot be re-activated. If the user needs to be re-activated, then a new portal user record must be created.
The following steps are used for portal users. This does not apply for partner users.
Outlined here are the steps to disable portal users using Data Loader.
Tip: If you are updating a large number of users, group users by Account, and enable Use Bulk API v1 and check Enable serial mode for Bulk API in the Data Loader Settings. This prevents record locking errors by processing batches one at a time. For more details on these settings, please refer Configure Data Loader.
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