How To Fix M2100 - Enter period in the format __.YYYY

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 100

• Message text: Enter period in the format __.YYYY

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message M2100 - Enter period in the format __.YYYY ?

  The SAP error message M2100, which states "Enter period in the format __.YYYY," typically occurs when a user is trying to enter a period in a transaction or report, and the format of the period is incorrect. This error is common in modules that deal with financial data, such as Material Management (MM) or Financial Accounting (FI).
  Cause:
  The error is caused by the user entering the period in an incorrect format. The expected format is usually a two-digit month followed by a four-digit year (MM.YYYY). For example, if you want to enter March 2023, you should enter it as "03.2023".
  Solution:
  To resolve this error, follow these steps:
  
  
  Check the Format: Ensure that you are entering the period in the correct format (MM.YYYY). For example:
  
  Correct: 03.2023
  Incorrect: 2023.03 or 3.2023
  
  
  
  Input Validation: If you are using a dropdown or selection field, make sure to select the period from the provided options instead of typing it manually.
  
  
  System Settings: If you are consistently facing this issue, check if there are any user-specific settings or configurations that might be affecting the date format. You can do this by:
  
  Going to the user profile settings in SAP.
  Checking the date format settings.
  
  
  
  Consult Documentation: If you are unsure about the expected format or if the error persists, consult the SAP documentation or help files related to the specific transaction or module you are using.
  
  
  Contact Support: If the issue continues after verifying the format and settings, consider reaching out to your SAP support team or system administrator for further assistance.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  User Training: Ensure that users are trained on the correct input formats for various fields in SAP to minimize errors.
  Transaction Codes: Familiarize yourself with the transaction codes where this error might occur, as it can help in troubleshooting.
  
  By following these steps, you should be able to resolve the M2100 error and successfully enter the required period in the correct format.