How To Fix M2099 - 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: 099

• 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 M2099 - Enter period in the format YYYY/__ ?

  The SAP error message M2099, which states "Enter period in the format YYYY/__," typically occurs when a user is trying to enter a period in a transaction or report, but the format of the period is incorrect. This error is common in modules that deal with materials management, inventory, or financial postings.
  Cause:
  The error is caused by the user entering a period in an incorrect format. SAP expects the period to be entered in the format of "YYYY/MM," where:
  
  YYYY represents the four-digit year.
  MM represents the two-digit month (01 for January, 02 for February, etc.).
  
  If the user enters the period in any other format (e.g., "2023-01" or "2023/1"), SAP will not recognize it and will throw the M2099 error.
  Solution:
  To resolve this error, follow these steps:
  
  
  Check the Format: Ensure that you are entering the period in the correct format: YYYY/MM. For example, if you want to enter January 2023, you should enter 2023/01.
  
  
  Correct Input: If you have entered the period incorrectly, simply correct it to the proper format and try again.
  
  
  Validation: If you are using a program or report that automatically generates the period, ensure that it is configured to output the period in the correct format.
  
  
  Documentation: Refer to the SAP documentation or help files for the specific transaction or report you are using to confirm the expected input formats.
  
  
  User Training: If this error occurs frequently, consider providing training or guidance to users on the correct input formats for periods in SAP.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific issues related to the transaction you are using. Sometimes, there may be known issues or patches that address similar problems.
  Transaction Codes: If you are working with specific transaction codes (like MB1A, MB1B, etc.), ensure you are familiar with their requirements and input formats.
  User Roles: Ensure that the user has the appropriate roles and authorizations to perform the actions they are attempting, as sometimes errors can be misleading.
  
  By following these steps, you should be able to resolve the M2099 error and successfully enter the required period in SAP.