How To Fix >REP018 - Structure of selection &1 is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: >REP -

• Message number: 018

• Message text: Structure of selection &1 is not allowed

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message >REP018 - Structure of selection &1 is not allowed ?

  The SAP error message REP018: Structure of selection &1 is not allowed typically occurs when there is an issue with the selection criteria defined in a report or transaction. This error indicates that the structure of the selection screen or the parameters being used are not compatible with the expected format or requirements of the report.
  Causes:
  
  Invalid Selection Criteria: The selection criteria defined in the report may not match the expected structure or format. This can happen if the fields used in the selection screen are not compatible with the data being queried.
  Incorrect Data Types: The data types of the fields in the selection criteria may not align with the data types in the underlying database tables.
  Missing or Incorrect Parameters: Required parameters may be missing or incorrectly defined, leading to an invalid selection structure.
  Custom Development Issues: If the report is a custom development, there may be issues in the ABAP code that define the selection screen or the logic for processing the selection criteria.
  
  Solutions:
  
  Review Selection Criteria: Check the selection criteria defined in the report. Ensure that all fields are correctly defined and that they match the expected data types and structures.
  Check Data Types: Verify that the data types of the selection fields correspond to the data types in the database tables. If there are discrepancies, adjust the selection fields accordingly.
  Validate Required Parameters: Ensure that all required parameters are provided and correctly defined in the selection screen.
  Debug Custom Code: If the report is custom-developed, debug the ABAP code to identify any issues in the selection screen definition or the logic that processes the selection criteria.
  Consult Documentation: Refer to SAP documentation or help resources for the specific report or transaction to understand the expected selection structure.
  
  Related Information:
  
  Transaction Codes: If you are working with a specific transaction code, check the documentation or SAP Notes related to that transaction for any known issues or updates.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide guidance on similar issues.
  Community Forums: Consider checking SAP Community forums or other user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.