How To Fix K0154 - Data sets must not be selected when inserting.

SAP Error Message - Details

• Message type: E = Error

• Message class: K0 - Error Messages for Central Controlling Routines

• Message number: 154

• Message text: Data sets must not be selected when inserting.

What causes this issue?

You are not allowed to attach any other nodes beneath a data set node
due to the special structure of the set.

System Response

Processing is terminated.

How to fix this error?

Since a data set can only be used in a multi-field group, you can
create a node parallel to this data set by selecting the top node and
using <ZH>Insert</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message K0154 - Data sets must not be selected when inserting. ?

  The SAP error message K0154 ("Data sets must not be selected when inserting") typically occurs in the context of SAP Controlling (CO) when you are trying to insert data into a table or a dataset that does not allow for the selection of existing data sets. This error is often related to the way data is being processed in the system, particularly when dealing with cost center accounting, internal orders, or other CO-related transactions.
  Cause:
  
  Incorrect Data Entry: The error may arise if you are trying to insert new records while simultaneously selecting existing datasets. The system expects a clear distinction between inserting new data and selecting existing data.
  Configuration Issues: There may be configuration settings in the controlling module that restrict the way data can be inserted or selected.
  Program Logic: If you are using a custom program or report, there may be logic that incorrectly handles the insertion of data.
  
  Solution:
  
  Check Data Entry: Ensure that you are not trying to select existing datasets while performing an insert operation. Review the transaction or program you are using to ensure that you are only inserting new records.
  Review Configuration: Check the configuration settings in the SAP Controlling module to ensure that they are set up correctly for the operations you are trying to perform.
  Debug Custom Programs: If you are using a custom program, debug the code to identify where the error is occurring. Look for any SELECT statements that may be executed during an INSERT operation.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the transaction or program you are using. This may provide insights into the expected behavior and any restrictions.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may have additional insights or patches available for your specific version of SAP.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the relevant transaction codes in SAP CO that may be related to your issue (e.g., KSB1, KOB1).
  SAP Notes: Search for SAP Notes related to error K0154 in the SAP Support Portal. There may be specific notes addressing this error with recommended solutions or workarounds.
  User Forums: Check SAP community forums or user groups for discussions related to this error. Other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the cause of the K0154 error and implement a solution to resolve it.