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

MD503 - Overview

• 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