How To Fix DT639 - Table & can be converted

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 639

• Message text: Table & can be converted

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT639 - Table & can be converted ?

  The SAP error message DT639 typically indicates that a specific table cannot be converted due to certain constraints or issues. This error often arises during data migration or when attempting to change the structure of a table in the SAP system.
  Cause:
  
  Data Inconsistency: The table may contain data that does not comply with the new structure or constraints being applied.
  Foreign Key Constraints: There may be foreign key relationships that prevent the conversion of the table.
  Data Type Mismatch: The data types of the fields in the table may not be compatible with the new structure.
  Locked Objects: The table or related objects may be locked by another process or user.
  Missing Authorization: The user attempting the conversion may not have the necessary authorizations to perform the operation.
  
  Solution:
  
  Check Data Consistency: Review the data in the table for any inconsistencies or violations of constraints. You may need to clean or adjust the data before attempting the conversion again.
  Review Foreign Key Relationships: Identify any foreign key constraints that may be affecting the conversion. You may need to drop or adjust these constraints temporarily.
  Adjust Data Types: Ensure that the data types of the fields in the table are compatible with the new structure. You may need to modify the data types accordingly.
  Unlock Objects: If the table or related objects are locked, you may need to wait for the lock to be released or contact the user who has locked the object.
  Check Authorizations: Ensure that the user has the necessary authorizations to perform the conversion. If not, contact your SAP security administrator to obtain the required permissions.
  Use Transaction Codes: Utilize transaction codes like SE11 (Data Dictionary) to analyze the table structure and constraints, and SE14 (Database Utility) to manage database objects.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to the DT639 error. SAP frequently updates its knowledge base with solutions for common issues.
  Transaction Logs: Review transaction logs for additional details on the error, which may provide insights into the specific cause.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.