When using the Bulk Loader or Bulk Task to submit Modify User tasks, those tasks are completed successfully and the users updated, but when trying to view the task details in View Submitted Tasks, a java.lang.NullPointerException is displayed on screen and in the log file.
This can occur if "Allow custom column" is enabled for the View Submitted Tasks task, but no custom column name is specified.
To resolve the error, modify the View Submitted Tasks task as follows:
1. Select the View Submitted Tasks task to modify, then click Tabs, and edit the Submitted Tasks tab.
2. Uncheck "Allow custom column".
3. Submit the change.