Prepare the worker at the shared assembly workspace after it has acquired the needed objects it will use there and immediately before workspace manipulation; this action does not acquire objects or construct the product.
Prepare the worker at the oven destination after the requested dish is complete and immediately before loading it for heating; this action does not create or complete the dish.
Return to conveyor-ready posture.
Acquire the package from the conveyor.
At the shared assembly workspace, use exactly one selected filling ingredient with bread to contribute to constructing the requested sandwich; when multiple workers contribute, wait until all participating workers have completed relevant ingredient acquisition and assembly-zone preparation.
Load the completed dish into the oven for heating after destination-facing preparation; this terminal action should wait for every required dish contribution.
Acquire a two-item ingredient bundle from the conveyor area and make those ingredients available for later workspace manipulation.
Place the package on the selected destination layer.