How To Fix CID242 - Internal error: Key field is missing

CID242 - Overview

• Message type: E = Error

• Message class: CID - COPC IDOC Messages

• Message number: 242

• Message text: Internal error: Key field is missing

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 CID242 - Internal error: Key field is missing ?

  The SAP error message CID242, which states "Internal error: Key field is missing," typically indicates that there is a problem with the data being processed in the system. This error can occur in various contexts, such as during data entry, report generation, or when executing certain transactions. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Missing Key Fields: The most common cause is that a required key field in a database table or structure is not populated. Key fields are essential for uniquely identifying records.
  Data Corruption: There may be corruption in the data or inconsistencies in the database that lead to missing key fields.
  Custom Development Issues: If there are custom programs or enhancements, they may not be handling key fields correctly.
  
  Configuration Issues: Incorrect configuration settings in the system can lead to missing key fields during processing.
  Transport Issues: If changes were transported from one system to another, there