How To Fix CNV_10940_MSG508 - Start dates are invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10940_MSG - Message Class for Report Variant Scan

• Message number: 508

• Message text: Start dates are invalid

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10940_MSG508 - Start dates are invalid ?

  The SAP error message CNV_10940_MSG508 indicating that "Start dates are invalid" typically arises during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the execution of certain programs that involve date fields.
  Cause:
  
  Invalid Date Format: The date provided may not conform to the expected format (e.g., YYYY-MM-DD).
  Out of Range Dates: The dates may fall outside the acceptable range defined by the system (e.g., dates before the system's start date or after the end date).
  Incorrect Data Mapping: The mapping of source data to target fields may be incorrect, leading to invalid date entries.
  Missing Required Fields: If the start date is a required field and is missing or null, it can trigger this error.
  Data Type Mismatch: The field in the database may expect a different data type than what is being provided (e.g., a string instead of a date).
  
  Solution:
  
  Check Date Format: Ensure that the dates are in the correct format as expected by the SAP system.
  Validate Date Values: Review the start dates to ensure they are within the acceptable range and are logically valid (e.g., not in the future if that is not allowed).
  Review Data Mapping: Verify that the data mapping from the source to the target is correct and that all required fields are being populated.
  Data Cleansing: If the data is coming from an external source, perform data cleansing to remove or correct invalid entries before migration.
  Debugging: If you have access to debugging tools, you can trace the execution of the program to identify where the invalid date is being generated or processed.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool or program you are using for any additional requirements or constraints regarding date fields.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to data migration (e.g., LSMW, LTMC) and their specific requirements for date fields.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed and resolved.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the context in which the error occurs.