How To Fix PSSC_TOOLS066 - External to internal date format conversion of date from &1 not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: PSSC_TOOLS - Message Class for Periods & Due Date Tools

• Message number: 066

• Message text: External to internal date format conversion of date from &1 not possible

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PSSC_TOOLS066 - External to internal date format conversion of date from &1 not possible ?

  The SAP error message PSSC_TOOLS066 indicates that there is an issue with converting a date from an external format to an internal format. This typically occurs when the date format provided does not match the expected format in the SAP system.
  Cause:
  
  Incorrect Date Format: The date being processed is in a format that SAP does not recognize or cannot convert. For example, if the date is in a format like MM/DD/YYYY but the system expects DD/MM/YYYY, this error can occur.
  Invalid Date Values: The date provided may contain invalid values, such as 31/02/2023, which does not exist.
  Configuration Issues: The system's date format settings may not be aligned with the format being used in the external system or input.
  
  Solution:
  
  Check Date Format: Ensure that the date being input matches the expected format in SAP. You can check the expected format in the user settings or system configuration.
  Validate Date Values: Make sure that the date values are valid and do not contain any errors. For example, ensure that the day, month, and year are within acceptable ranges.
  Adjust User Settings: If the error is occurring due to user-specific settings, you can adjust the date format in the user profile settings:
  
  Go to System > User Profile > Own Data (or transaction code SU3).
  Check the Defaults tab for the date format settings.
  
  
  Review Input Data: If the date is coming from an external source (like a file or an API), ensure that the data is being formatted correctly before it is sent to SAP.
  Consult Documentation: If you are unsure about the expected date format, refer to the SAP documentation or consult with your SAP administrator.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to date format conversions.
  Transaction Codes: Use transaction codes like SU3 to check user settings or SE11 to review data element definitions related to date fields.
  Debugging: If you have access, you can debug the program or function module that is generating this error to identify the exact point of failure.
  
  By following these steps, you should be able to resolve the error and ensure that date conversions are handled correctly in your SAP system.