How To Fix LOP016 - Side &1 is not allowed. Key &2

SAP Error Message - Details

• Message type: E = Error

• Message class: LOP - Logistical contract options

• Message number: 016

• Message text: Side &1 is not allowed. Key &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message LOP016 - Side &1 is not allowed. Key &2 ?

  The SAP error message LOP016, which states "Side &1 is not allowed. Key &2," typically occurs in the context of logistics and inventory management, particularly when dealing with stock movements or inventory transactions. This error indicates that there is an issue with the side (e.g., left or right) specified in the transaction, which is not permitted for the given key (which could refer to a material, storage location, or other relevant identifier).
  Cause:
  
  Invalid Side Specification: The side specified in the transaction does not match the allowed values defined in the system for the given key.
  Configuration Issues: The configuration settings for the material or storage location may not allow for the specified side.
  Data Entry Errors: There may be a typographical error or incorrect data entry when specifying the side or key.
  Master Data Issues: The master data for the material or storage location may not be set up correctly, leading to restrictions on the allowed sides.
  
  Solution:
  
  Check the Side Specification: Verify that the side you are trying to use is valid for the material or storage location in question. Consult the relevant documentation or configuration settings.
  Review Configuration Settings: Check the configuration settings in the SAP system for the material or storage location to ensure that the side is allowed. This may involve looking at the material master data or storage location settings.
  Correct Data Entry: Ensure that there are no typographical errors in the side or key you are entering. Double-check the values against the allowed options in the system.
  Update Master Data: If the master data is incorrect, you may need to update it to allow for the specified side. This may involve working with your SAP master data team or using transaction codes like MM02 (Change Material) to make necessary adjustments.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the error and how to resolve it.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MMBE (Stock Overview) to check material and stock details.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to perform the transaction you are attempting, as restrictions may also lead to this error.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in logistics and inventory management.