How To Fix /MVA/AMT_MESSAGES201 - A retroactive change is necessary.

SAP Error Message - Details

• Message type: E = Error

• Message class: /MVA/AMT_MESSAGES -

• Message number: 201

• Message text: A retroactive change is necessary.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /MVA/AMT_MESSAGES201 - A retroactive change is necessary. ?

  The SAP error message /MVA/AMT_MESSAGES201 indicating "A retroactive change is necessary" typically arises in the context of the SAP Advanced Planning and Optimization (APO) module or the Material Valuation area. This error usually occurs when there is a need to adjust or change historical data due to a change in master data or configuration that affects past transactions.
  Cause:
  
  Master Data Changes: Changes in material master data, such as changes in valuation class, price control, or other key fields that affect historical transactions.
  Configuration Changes: Changes in configuration settings that impact how transactions are processed or valued.
  Data Inconsistencies: Inconsistencies in the data that require adjustments to past transactions to ensure that the system reflects the correct values.
  Price Changes: Changes in pricing conditions that need to be applied retroactively to previous periods.
  
  Solution:
  
  Review Changes: Identify the changes made to master data or configuration settings that triggered the error. This can involve checking change logs or reviewing recent updates.
  Perform Retroactive Adjustments: Depending on the nature of the change, you may need to perform retroactive adjustments. This can involve:
  
  Running a retroactive pricing report.
  Adjusting inventory values or costs in the system.
  Using transaction codes like MR21 (Change Material Price) or MR22 (Change Price for Material Document) to adjust prices.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific error message for guidance on how to handle retroactive changes.
  Testing: After making adjustments, test the changes in a development or quality assurance environment before applying them to production.
  Consult with SAP Support: If the issue persists or if you are unsure about the changes, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in resolving the issue, such as MM02 (Change Material), MB1A (Goods Withdrawal), and others related to inventory and material management.
  SAP Notes: Check for any SAP Notes that may address this specific error or provide additional context on handling retroactive changes.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, providing insights or solutions from other users' experiences.
  
  By following these steps, you should be able to address the error message and ensure that your SAP system reflects accurate and consistent data.