How To Fix /SAPAPO/ATP021 - Choose one record only

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 021

• Message text: Choose one record only

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/ATP021 - Choose one record only ?

  The SAP error message /SAPAPO/ATP021 - Choose one record only typically occurs in the context of Advanced Planning and Optimization (APO) when a user attempts to select multiple records in a situation where only a single record is expected. This can happen in various scenarios, such as during the allocation of stock, planning, or when executing certain transactions.
  Cause:
  The primary cause of this error is that the system is designed to allow only one selection at a time for the operation you are trying to perform. This could be due to:
  
  User Interface Limitation: The transaction or screen you are using is configured to accept only a single record selection.
  Business Logic: The underlying business process requires a single record to ensure data integrity or to perform a specific operation that cannot be executed on multiple records simultaneously.
  
  Solution:
  To resolve the /SAPAPO/ATP021 error, you can follow these steps:
  
  Select a Single Record: Ensure that you are only selecting one record at a time. If you have multiple records highlighted, deselect all but one.
  Check for Filters: If you are using filters or search criteria, make sure they are set correctly to narrow down the results to a single record.
  Review Documentation: Consult the SAP documentation or help files related to the specific transaction you are using to understand the expected behavior and any limitations.
  User Training: If this is a recurring issue, consider providing training to users on how to properly use the transaction to avoid selecting multiple records inadvertently.
  
  Related Information:
  
  Transaction Codes: The error can occur in various transaction codes within the APO module, such as those related to ATP (Available to Promise) checks, stock allocation, or planning.
  SAP Notes: Check for any relevant SAP Notes that might address this error or provide additional context or fixes.
  System Configuration: Sometimes, the configuration of the APO system or the specific transaction can be adjusted to allow for different behaviors, but this should be done with caution and typically requires administrative access.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP's support portal for further assistance.