How To Fix WRF_PRC_SCD428 - Start date &1 is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_PRC_SCD - Purchasing Scheduling Seasonal Procurement

• Message number: 428

• Message text: Start date &1 is invalid

What causes this issue?

Data conflict in the date line
A start date you entered does not exist in the date line.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

The program cannot calculate any dates.

How to fix this error?

Check the dates and the assigned transportation chains.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_PRC_SCD428 - Start date &1 is invalid ?

  The SAP error message WRF_PRC_SCD428, which states "Start date &1 is invalid," typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where date management is crucial for planning and scheduling processes.
  Cause:
  The error indicates that the start date provided (represented by &1) is not valid for the operation being performed. This can happen due to several reasons:
  
  Date Format Issues: The date may not be in the expected format (e.g., DD/MM/YYYY vs. MM/DD/YYYY).
  Date Range Violations: The start date may fall outside of the allowed date range for the planning period or the validity period of the data being processed.
  Calendar Settings: The date may not align with the defined calendar settings in the system (e.g., non-working days, holidays).
  Data Consistency: There may be inconsistencies in the data that lead to the start date being considered invalid.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Date Format: Ensure that the date is entered in the correct format as expected by the system.
  Validate Date Range: Verify that the start date falls within the valid planning horizon or the defined validity period for the relevant data.
  Review Calendar Settings: Check the calendar settings in the system to ensure that the date does not fall on a non-working day or holiday.
  Data Review: Look for any inconsistencies in the data that might affect the validity of the start date. This may involve checking related master data or transaction data.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines related to the module you are working with.
  System Configuration: If the issue persists, it may be necessary to consult with your SAP Basis or configuration team to ensure that the system settings are correct.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like /SAPAPO/SDP94 (for planning) or others related to your specific module.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.