How To Fix /SAPAPO/MA664 - The old entry cannot be changed as requested

/SAPAPO/MA664 - Overview

• Message type: E = Error

• Message class: /SAPAPO/MA -

• Message number: 664

• Message text: The old entry cannot be changed as requested

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MA664 - The old entry cannot be changed as requested ?

  The SAP error message /SAPAPO/MA664 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an attempt to change an existing entry in a way that is not allowed by the system. This error can arise in various scenarios, such as during the planning process, when trying to modify a planned order, or when updating master data.
  
  Cause:
  The error message /SAPAPO/MA664 indicates that the system has detected an inconsistency or a violation of business rules that prevent the modification of the existing entry. Common causes include:
  
  Locked Entries: The entry you are trying to change may be locked by another user or process.
  Data Consistency: The change you are attempting may violate data consistency rules defined in the system.
  Status Issues: The status of the entry may not allow for changes (e.g., if it is already confirmed or completed).
  Time Period Restrictions: Changes may not be allowed for certain time