Why are the supplier registration tasks not getting triggered properly?

This can happen due to many reasons. Keep the following in mind while configuring the tasks in the registration template:

• Adding tasks outside of the new registration phase or an update phase is not supported.
• Do not make tasks in one phase predecessors of tasks in a different phase.
• The use of conditions at phases are not supported.
• Tasks aren't supported for folders or documents within folders in supplier management project template. Don't add a task to a folder or document within a folder in supplier management project templates.
• Use of conditions on tasks in registration projects is supported but isn't a best practice and is subject to restrictions mentioned in Restrictions, Requirements, and Helpful Hints for Setting Up the Supplier Registration Project Template
• Do not use project-level conditions on registration approval tasks for initial registrations and registration updates.
• Make sure that the very last task in a Registration Phase is always the Approval Task for the External Registration Questionnaire.
• If you're using conditions for To Do tasks, make sure that the question which triggers the appearance of the To Do task has been answered in a way that would actually make it appear.

• Instead of configuring the conditions on the task level, you can configure the conditions on the nodes in an approval task. For more details, please visit Restrictions, Requirements, and Helpful Hints for Setting Up the Supplier Registration Project Template
• If you want to know more about the configuring of tasks in the Supplier Registration process, please refer to the Supplier Management Setup and Administration Guide.

Supplier Lifecycle & Performance > Supplier Lifecycle & Performance Registration