Resolving the Error: “MRP Controller 001 Does Not Exist for Plant THYD”

When working with Material Requirements Planning (MRP) in SAP, you might encounter the error “MRP Controller 001 does not exist for plant THYD”. This issue arises when the MRP controller is not assigned or configured for the specified plant. Below is a step-by-step tutorial to resolve this issue.

MRP Controller Configuration

What Is an MRP Controller?

An MRP Controller in SAP is a key component responsible for overseeing the material planning and procurement process. Each MRP controller must be associated with the relevant plant to ensure proper functionality. If this assignment is missing, MRP-related processes will fail, resulting in errors like the one mentioned.

Steps to Resolve the Error

1. Access MRP Controller Configuration

  • Navigate to the SAP configuration menu: SPRO > Production > Material Requirements Planning > Master Data > Define MRP Controller

2. Define or Verify the MRP Controller

  • In the MRP controller configuration screen, verify if the controller code (e.g., 001) is already defined for the plant THYD.
  • If it doesn’t exist, create a new MRP controller entry.
    • Enter the MRP Controller Code (e.g., 001).
    • Provide a description (e.g., MRP Manager for Plant THYD).
    • Save the configuration.

3. Assign MRP Controller to the Plant

  • Once the MRP controller is defined, ensure that it is assigned to the correct plant:
    • In the configuration screen, link MRP Controller 001 with Plant THYD.
    • Save your changes.

4. Validate in Material Master

  • Use transaction code MM02 to open the material master record.
  • Go to the MRP1 Tab and check the MRP Controller field.
    • Ensure that 001 is selected as the MRP controller for the material.
    • Save the material master record.

Testing the Configuration

After completing the above steps, run an MRP process to confirm that the error has been resolved:

  1. Use transaction code MD01 or MD02 to execute MRP.
  2. Verify that the system now recognizes the MRP controller for plant THYD.

Additional Tips

  • Regularly Maintain Configuration: Ensure MRP controllers are correctly assigned during initial plant setup to avoid such errors.
  • User Access: Confirm that you have the necessary authorizations to modify MRP configurations and material master records.
  • Testing Before Go-Live: Test the configuration in a sandbox or testing environment before applying it in production.

Conclusion

By following this guide, you can resolve the error “MRP Controller 001 does not exist for plant THYD” effectively. Properly configured MRP controllers are essential for seamless material planning and procurement processes in SAP. Ensure all relevant plants and materials have their MRP controllers correctly assigned to avoid disruptions in the workflow.

For further assistance, feel free to ask!