How To Fix /SAPAPO/ATP577 - Specify a value either for the field '&1' or for '&2'

/SAPAPO/ATP577 - Overview

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 577

• Message text: Specify a value either for the field '&1' or for '&2'

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/ATP577 - Specify a value either for the field '&1' or for '&2' ?

  The SAP error message /SAPAPO/ATP577 typically occurs in the Advanced Planning and Optimization (APO) module when there is a requirement to specify a value for certain fields, but neither of the required fields has been populated. This error is often related to the Available-to-Promise (ATP) checks or similar functionalities where specific parameters are necessary for the system to process the request.
  
  Cause:
  The error message indicates that the system requires a value for either one of the specified fields (denoted as &1 and &2 in the error message). This usually happens in scenarios such as:
  
  Missing Input Data: The user has not provided necessary input data in the transaction or program that is being executed.
  
  Configuration Issues: There may be a configuration issue in the APO settings that leads to the system expecting certain values that are not being provided.
  Data Inconsistencies: There could be inconsistencies in the master data or transaction data that prevent