How To Fix J2642 - &4 Reverse function only supported during selection of key dates

SAP Error Message - Details

• Message type: E = Error

• Message class: J2 - Message Class for Development Class JBT

• Message number: 642

• Message text: &4 Reverse function only supported during selection of key dates

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message J2642 - &4 Reverse function only supported during selection of key dates ?

  The SAP error message J2642 &4 ("Reverse function only supported during selection of key dates") typically occurs in the context of the SAP system when users attempt to perform a reversal operation in a scenario where it is not allowed or not applicable. This error is often encountered in modules related to financial accounting or controlling, particularly when dealing with key date selections for transactions.
  Cause:
  
  Key Date Selection: The error indicates that the reversal function is only applicable when a key date is selected. If you are trying to reverse a transaction without specifying a key date, the system will throw this error.
  Transaction Type: The type of transaction you are trying to reverse may not support reversal without a key date.
  Configuration Issues: There may be configuration settings in the SAP system that restrict the reversal functionality under certain conditions.
  
  Solution:
  
  Select Key Date: Ensure that you are selecting a key date when attempting to perform the reversal. This is typically done in the selection screen of the transaction you are using.
  Check Transaction Type: Verify that the transaction type you are trying to reverse supports the reversal operation with a key date.
  Review Configuration: If you have the necessary permissions, review the configuration settings related to the transaction type and reversal processes in your SAP system. You may need to consult with your SAP administrator or functional consultant to ensure that the settings are correct.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the transaction you are working with, as there may be additional requirements or steps needed to perform a reversal.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional context on how to handle reversals in your version of SAP.
  Transaction Codes: Familiarize yourself with the transaction codes related to the process you are working on, as different transactions may have different requirements for reversals.
  User Permissions: Ensure that you have the necessary permissions to perform reversal operations in the SAP system, as restrictions may lead to errors.
  
  If the issue persists after following these steps, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.