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

ALSMEX029 - Overview

• 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.

ALSMEX029 - Details

• 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