How To Fix IHC646 - Instructions key & is not permitted

IHC646 - Overview

• Message type: E = Error

• Message class: IHC - IHC Messages

• Message number: 646

• Message text: Instructions key & is not permitted

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 IHC646 - Instructions key & is not permitted ?

  The SAP error message IHC646 ("Instructions key & is not permitted") typically occurs in the context of the SAP Intercompany Financial Management (IHC) module. This error indicates that the system has encountered an issue with the instructions key being used in a transaction, which is not allowed or recognized.
  
  Cause:
  
  Invalid Instructions Key: The instructions key being used in the transaction may not be defined in the system or may not be valid for the specific transaction type.
  
  Configuration Issues: There may be configuration settings in the IHC module that restrict the use of certain instructions keys based on the transaction type or the involved company codes.
  Authorization Issues: The user may not have the necessary authorizations to use the specified instructions key.
  Data Entry Errors: There could be a typographical error in the instructions key entered during the transaction.
  
  
  Solution:
  
  Check Instructions Key: Verify that the instructions key being used is valid and correctly entered. You