How To Fix T8400 - Enter one increment only

SAP Error Message - Details

• Message type: E = Error

• Message class: T8 - Analysis system evaluations

• Message number: 400

• Message text: Enter one increment only

What causes this issue?

You have entered more than one increment.

System Response

The system only includes the first increment you entered.

How to fix this error?

Check the increments you have entered.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message T8400 - Enter one increment only ?

  The SAP error message T8400 "Enter one increment only" typically occurs in the context of entering values in fields that expect a specific increment or unit of measure. This error is often seen in scenarios involving quantity entry, pricing, or other numerical inputs where the system expects a value that adheres to a defined increment.
  Cause:
  
  Incorrect Input: The user may have entered a value that does not conform to the expected increment. For example, if the system expects quantities in increments of 10, entering 15 would trigger this error.
  Configuration Settings: The settings in the material master or the relevant configuration may define specific increments for certain fields, and the input does not match these settings.
  Unit of Measure Issues: If the unit of measure is not set up correctly or if there are discrepancies in the conversion factors, it can lead to this error.
  
  Solution:
  
  Check Input Values: Ensure that the value you are entering adheres to the required increment. For example, if the increment is 10, only values like 10, 20, 30, etc., should be entered.
  Review Configuration: If you have access, check the configuration settings in the material master or relevant transaction to see what increments are defined. This can usually be found in the material master under the "Basic Data" or "Sales" views.
  Consult Documentation: Refer to the SAP documentation or help files related to the specific transaction or module you are working with to understand the expected input formats.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with a functional expert who can provide insights based on your specific configuration and usage.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transactions, such as sales order creation (VA01), purchase order creation (ME21N), or inventory management (MM01).
  User Exits and BAdIs: In some cases, custom logic implemented through user exits or Business Add-Ins (BAdIs) may affect how increments are handled.
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional context on how to handle it.
  
  By following these steps, you should be able to identify the cause of the T8400 error and implement a suitable solution.