How To Fix FMCA_PSOB128 - Data record could not be saved; key field is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: FMCA_PSOB - Contract Object

• Message number: 128

• Message text: Data record could not be saved; 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FMCA_PSOB128 - Data record could not be saved; key field is missing ?

  The SAP error message FMCA_PSOB128 indicates that a data record could not be saved because a key field is missing. This error typically occurs in the context of financial management or controlling modules, particularly when dealing with data records that require specific key fields to be populated for successful processing.
  Cause:
  The error is usually caused by one or more of the following reasons:
  
  Missing Key Fields: The required key fields that uniquely identify a record are not filled in. This could be due to user input errors or system configuration issues.
  Data Entry Issues: During data entry, certain mandatory fields may have been left blank, leading to the inability to save the record.
  Configuration Problems: There may be issues with the configuration of the relevant module or transaction, where the key fields are not properly defined.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access or modify certain key fields.
  
  Solution:
  To resolve the FMCA_PSOB128 error, you can take the following steps:
  
  
  Check Required Fields: Review the data entry screen to ensure that all required key fields are filled in. Look for any fields marked with an asterisk (*) or highlighted in red.
  
  
  Validate Data: Ensure that the data being entered is valid and conforms to the expected formats. For example, if a field expects a specific code or identifier, make sure that it is correctly entered.
  
  
  Review Configuration: If you have access to configuration settings, check the relevant settings in the SAP system to ensure that key fields are properly defined and configured.
  
  
  Consult Documentation: Refer to SAP documentation or help files related to the specific transaction or module you are working with to understand the required fields and their significance.
  
  
  User Authorizations: Ensure that the user has the necessary authorizations to access and modify the key fields. If not, contact your SAP security administrator to review and adjust the user roles.
  
  
  Error Logs: Check the system logs or error messages for additional details that may provide more context about the missing key field.
  
  
  Contact Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the transaction codes related to the module you are working in, as they may provide additional insights into the data entry process.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide patches and updates.
  Training and Documentation: Ensure that users are trained on the proper data entry procedures and understand the importance of key fields in the SAP system.
  
  By following these steps, you should be able to identify and resolve the issue causing the FMCA_PSOB128 error message.