When a workflow activity in Adobe Campaign Classic encounters an error, it pauses and the activity is highlighted with a blinking red halo. The most direct and standard method for any user, including a business practitioner, to diagnose the issue is to access the activity's specific execution log. This log contains detailed messages, including the specific error that caused the failure. Right-clicking the problematic activity and selecting "Display Logs" opens this log, allowing for immediate troubleshooting.

B. Open the activity and view errors in the Advanced tab

The 'Advanced' tab within an activity's properties is used for configuration, such as scripting or setting execution parameters, not for displaying runtime error logs.

C. Under Campaign Administration, click "Error Logs"

This section shows global system-wide logs, not logs filtered for a specific activity in a particular workflow. It would be inefficient for diagnosing a single activity's error.

D. Ask a system administrator

While an administrator can help, the platform provides tools for business practitioners to perform initial troubleshooting themselves. This is a procedural step, not a direct technical solution within the tool.

1. Adobe Campaign Classic v7 Documentation - Workflow monitoring:

Section: Monitoring a workflow instance

Content: "A red halo means that an error has occurred. To find out the cause of an error

display the logs. To do this

right-click the faulty activity and select Display the logs." This directly confirms that right-clicking the activity to display its logs is the correct procedure.

2. Adobe Campaign Classic v7 Documentation - Get started with workflows:

Section: Executing a workflow > Logs and tasks

Content: "The Log tab lists the execution messages for the selected task. The same log is displayed if you right-click a task and select Display logs." This reinforces that the logs contain execution messages and are accessed via the right-click menu.