How To Fix ALSMEX029 - Warning: The date format does not match the value in the input file

SAP Error Message - Details

• Message type: E = Error

• Message class: ALSMEX - Message Class for Legacy Data Transfer

• Message number: 029

• Message text: Warning: The date format does not match the value in the input file

What causes this issue?

You set the European date format (DD.MM.YYYY) for the Excel legacy data
transfer. (If you did not make a setting, the setting was adopted from
your user master record.)
However, the value of the '&v1&' field, which was transferred from the
transfer file, contains a slash (/). This seems to indicate the American
date format (MM/DD/YYYY).

System Response

This is only a warning. In an update run, the system creates the asset
master record and interprets the transferred value in the unusual format
DD/MM/YYYY, as an exception.

How to fix this error?

Check your input file. If you want the date to be interpreted using this
unusual DD/MM/YYYY format, you do not have to do anything.
However, if you want the date to be transferred in MM/DD/YYYY format,
check if all the dates in the input file are in this format. If so, then
change the date format from the menu. Choose <ZH>Settings -> Date
format.</>
If your input file contains some dates in DD.MM.YYYY format and others
in MM/DD/YYYY format, you have to change your input file so that all
dates are in either American format or European format.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ALSMEX029 - Warning: The date format does not match the value in the input file ?

  The SAP error message ALSMEX029 indicates that there is a mismatch between the date format expected by the SAP system and the date format present in the input file being processed. This error typically occurs when using the LSMW (Legacy System Migration Workbench) tool to upload data into SAP.
  Cause:
  
  Date Format Mismatch: The date in the input file may be in a different format than what SAP expects. For example, if SAP expects dates in the format YYYY-MM-DD but the input file has dates in the format DD/MM/YYYY, this will trigger the error.
  Regional Settings: The date format may also be influenced by the regional settings of the SAP system or the user’s profile.
  Incorrect Mapping: The mapping of fields in LSMW may not be set up correctly, leading to the system misinterpreting the date fields.
  
  Solution:
  
  Check Input File: Open the input file and verify the date format. Ensure that it matches the expected format in SAP.
  Adjust Date Format: If the date format is incorrect, modify the input file to match the expected format. You can use tools like Excel or text editors to change the date format.
  LSMW Field Mapping: In LSMW, check the field mapping for the date fields. Ensure that the correct fields are mapped and that the date format is specified correctly.
  Use Conversion Routines: If necessary, use conversion routines in LSMW to convert the date format during the upload process. This can help in transforming the date format from the input file to the format expected by SAP.
  Test with Sample Data: Before running the full upload, test the process with a small sample of data to ensure that the date formats are being processed correctly.
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal for detailed information on LSMW and data upload processes.
  User Exits and BAdIs: If you have custom requirements, consider implementing user exits or BAdIs to handle specific date format conversions.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on handling date formats in LSMW.
  
  By following these steps, you should be able to resolve the ALSMEX029 error and successfully upload your data into SAP.