You are the production planner for a manufacturing company. After running operations scheduling for a production order, the following error message displays:

You need to identify the cause of the error. Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

A. Navigate to the work calendar and view working times. Validate that there are working days created in the scheduled period.

B. Review the calendar for the resource to determine if it is expired.

C. Review the available resources for Operation 10. Navigate to the Resource form and validate whether there is a calendar assigned.

D. Review the resource group assigned to Operation 10. Check to see if there is a calendar assigned and if the calendar is expired.