Just as the Work Package was accepted from the Project Manager, notification of its completion must be returned to the Project Manager.
PRINCE2 suggests:
✔ Review the Quality Register to verify that all the quality activities associated with the Work Package are complete
✔ Review the approval records to verify that all the products to be delivered by the Work Package are approved
✔ Update the Team Plan to show that the Work Package is complete
✔ Check the Work Package and follow the procedure to deliver completed products. Notify the Project Manager that the Work Package is complete.