How To Fix PSB_API_MSGCL098 - Key field "Object Number" cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: PSB_API_MSGCL -

• Message number: 098

• Message text: Key field "Object Number" cannot be changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PSB_API_MSGCL098 - Key field "Object Number" cannot be changed ?

  The SAP error message PSB_API_MSGCL098 indicates that there is an attempt to change the "Object Number" key field in a transaction or API call, which is not allowed. The "Object Number" is a key field that uniquely identifies a specific object in the SAP system, and changing it can lead to data integrity issues.
  Cause:
  
  Attempting to Update Key Field: The most common cause of this error is that a user or program is trying to update the "Object Number" of an existing record. In SAP, key fields are typically immutable once they are set.
  Incorrect API Usage: If you are using an API or function module that is not designed to allow changes to key fields, this error can occur.
  Data Migration or Upload Issues: During data migration or bulk uploads, if the "Object Number" is included in the data being uploaded, it can trigger this error.
  
  Solution:
  
  Do Not Change Key Fields: Ensure that your process does not attempt to change the "Object Number". If you need to create a new object, you should create a new record instead of trying to modify an existing one.
  Review API Documentation: If you are using an API, check the documentation to understand the correct usage and limitations regarding key fields.
  Data Validation: Before performing updates, validate the data to ensure that key fields are not included in the update payload.
  Use Correct Functionality: If you need to change attributes of an object, use the appropriate function or method that allows for updates to non-key fields only.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or updates related to this error message. SAP frequently updates its documentation and may provide additional context or solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting or managing the objects you are working with (e.g., SE11 for Data Dictionary, SE37 for Function Modules).
  Debugging: If you are a developer, consider debugging the program or API call to see where the attempt to change the "Object Number" is occurring.
  
  By following these guidelines, you should be able to resolve the error and ensure that your operations within SAP are compliant with the system's constraints regarding key fields.