How To Fix /SAPAPO/SDP136 - You are not permitted to enter negative values

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SDP -

• Message number: 136

• Message text: You are not permitted to enter negative values

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 /SAPAPO/SDP136 - You are not permitted to enter negative values ?

  The SAP error message /SAPAPO/SDP136: You are not permitted to enter negative values typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when dealing with planning data such as demand planning or supply planning. This error indicates that the system has detected an attempt to enter a negative value in a field where only non-negative values are allowed.
  Cause:
  
  Negative Input: The most straightforward cause is that the user is trying to enter a negative quantity in a field that does not accept negative values (e.g., demand, supply, or inventory levels).
  Data Entry Error: It could be a simple mistake during data entry where the user accidentally inputs a negative number.
  Configuration Settings: The system may be configured to disallow negative values for certain planning parameters, which can be a business rule or a system setting.
  Master Data Issues: There may be issues with the master data that lead to negative values being calculated or displayed incorrectly.
  
  Solution:
  
  Check Input Values: Review the values being entered to ensure that they are non-negative. If a negative value is not intended, correct it to a positive value or zero.
  Review Business Logic: If negative values are expected in certain scenarios (e.g., returns, adjustments), review the business logic and ensure that the system is set up to handle these cases appropriately.
  Configuration Review: Check the configuration settings in the APO system to see if there are any restrictions on negative values. This may involve consulting with a system administrator or SAP consultant.
  Master Data Validation: Validate the master data to ensure that it does not contain any erroneous negative values that could be causing this error.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines related to the transaction or process you are working with.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like /SAPAPO/SDP94 (for demand planning) or /SAPAPO/SDP93 (for supply planning).
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional context or solutions.
  User Authorization: Ensure that the user has the necessary authorizations to perform the actions they are attempting, as sometimes authorization issues can lead to unexpected errors.
  Testing: If changes are made to configurations or master data, conduct thorough testing to ensure that the issue is resolved and that no new issues arise.
  
  If the problem persists after checking these areas, it may be beneficial to engage with SAP support or a qualified SAP consultant for further assistance.