How To Fix MC230 - Key field &1-&2 missing

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 230

• Message text: Key field &1-&2 missing

What causes this issue?

Matchcode IDs of update type S (matchcode data update synchronous to
database changes, implementation as a separate table in addition to the
master tables) should contain all the key fields of the base tables,
i.e. the primary and secondary tables of the corresponding matchcode
object. Otherwise duplicate records could occur
in the matchcode when changes are made to the database.

System Response

This is a warning. The system continues.

How to fix this error?

If the key fields contained in the matchcode ID still uniquely identify
each data record, no action is necessary. If this is not the
case, you should include the missing key fields in the matchcode ID in
order to avoid duplicate records.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC230 - Key field &1-&2 missing ?

  The SAP error message MC230 ("Key field &1-&2 missing") typically occurs in the context of Material Management (MM) or Production Planning (PP) modules when the system expects certain key fields to be populated but finds them missing. This error can arise in various scenarios, such as during the execution of reports, transactions, or data processing.
  Cause:
  The error message MC230 is generally caused by one of the following issues:
  
  
  Missing Key Fields: The key fields that are required for the operation you are trying to perform are not filled in. This could be due to incomplete data entry or missing configuration in the system.
  
  
  Data Inconsistency: There may be inconsistencies in the master data or transactional data that lead to the absence of expected key fields.
  
  
  Custom Development: If there are custom programs or enhancements in your SAP system, they might not be handling certain scenarios correctly, leading to missing key fields.
  
  
  Configuration Issues: Incorrect configuration in the relevant modules (like MM or PP) can lead to this error, especially if certain settings are not aligned with the business processes.
  
  
  Solution:
  To resolve the MC230 error, you can take the following steps:
  
  
  Check Input Data: Review the data you are entering or processing. Ensure that all required key fields are filled in correctly. This may involve checking the material master, production orders, or other relevant documents.
  
  
  Review Configuration: Check the configuration settings in the relevant modules (MM, PP) to ensure that all necessary fields are defined and that the system is set up correctly.
  
  
  Data Consistency Check: Run consistency checks on your master data and transactional data to identify any discrepancies. You can use transaction codes like MM02 for material master or CO02 for production orders to verify the data.
  
  
  Debugging Custom Code: If the error occurs in a custom program, you may need to debug the code to identify where the key fields are not being populated. Work with your ABAP developers to resolve any issues.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or report you are using. There may be known issues or additional guidance available.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. Provide them with details of the error, including the transaction code and any relevant data.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01, MM02, CO01, CO02, etc., depending on the context of the error.
  SAP Notes: Search for SAP Notes related to error MC230 in the SAP Support Portal for any patches or updates that may address the issue.
  User Forums: Check SAP community forums or other user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the MC230 error in your SAP system.