How To Fix MD503 - &1: Finish date of components in past (T4)

SAP Error Message - Details

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 503

• Message text: &1: Finish date of components in past (T4)

What causes this issue?

The finish date of the order proposals for the components is in the
past.

System Response

This exception message appears in the MRP list for a planning run in
the main memory. This situation can occur if automatic forward
scheduling in MRP is switched off in Customizing for the corresponding
plant.

How to fix this error?

Check whether the order proposals for the components are to be
rescheduled and/or converted. You can access these order proposals by
choosing the function 'Order structure' for the receipt you are
viewing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD503 - &1: Finish date of components in past (T4) ?

  The SAP error message MD503, which states "Finish date of components in past (T4)," typically occurs in the context of production planning and material requirements planning (MRP). This error indicates that the finish date for one or more components in a production order or planned order is set in the past, which is not acceptable for the planning process.
  Cause:
  
  Past Dates: The finish date for the components is set to a date that has already passed. This can happen if the production order was created with incorrect dates or if there were changes in the scheduling that were not updated correctly.
  Lead Time Issues: If the lead times for components are not properly defined, it may lead to scheduling conflicts where the required components are expected to be available before they can realistically be produced or procured.
  Incorrect Planning Parameters: The planning parameters for the materials or the production order may not be set correctly, leading to unrealistic scheduling.
  Changes in Production Schedule: If there are changes in the production schedule that are not reflected in the component scheduling, it can lead to this error.
  
  Solution:
  
  Check Dates: Review the finish dates of the components in the production order. Ensure that they are set to a future date. You can do this by navigating to the production order and checking the component overview.
  Adjust Scheduling: If the finish dates are incorrect, adjust the scheduling of the production order or the planned order to ensure that all components have a finish date that is in the future.
  Review Lead Times: Ensure that the lead times for the components are correctly defined in the material master. Adjust them if necessary to reflect realistic procurement or production times.
  Re-schedule the Order: If the production order is already created, you may need to re-schedule it. This can be done using transaction codes like CO02 (Change Production Order) or CO01 (Create Production Order).
  Check MRP Settings: Review the MRP settings for the materials involved. Ensure that the planning parameters are set correctly to avoid scheduling issues.
  Consult Documentation: If the issue persists, consult SAP documentation or reach out to your SAP support team for further assistance.
  
  Related Information:
  
  Transaction Codes: CO01 (Create Production Order), CO02 (Change Production Order), MD04 (Stock/Requirements List), MD02 (Single-item, Multi-level MRP).
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  User Exits and BAdIs: If custom logic is implemented in your SAP system, check if any user exits or BAdIs are affecting the scheduling of production orders.
  
  By following these steps, you should be able to resolve the MD503 error and ensure that your production planning processes run smoothly.