How To Fix 1G018 - Database insert in table &1 failed (line &4)

SAP Error Message - Details

• Message type: E = Error

• Message class: 1G - BKK: Konditionen

• Message number: 018

• Message text: Database insert in table &1 failed (line &4)

What causes this issue?

Condition &v3& could not be inserted in the table. (SY-SUBRC: &v2&)

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 1G018 - Database insert in table &1 failed (line &4) ?

  The SAP error message 1G018 indicates that there was a failure when trying to insert a record into a database table. The message provides specific details, including the name of the table (&1) and the line number (&4) where the error occurred. This error can arise from various causes, and understanding the context is crucial for troubleshooting.
  Possible Causes:
  
  Database Constraints: The insert operation may violate database constraints such as primary key, foreign key, unique constraints, or check constraints.
  Data Type Mismatch: The data being inserted may not match the expected data types defined in the database schema.
  Null Values: Attempting to insert null values into columns that do not allow nulls can trigger this error.
  Locking Issues: The table may be locked by another transaction, preventing the insert operation from completing.
  Insufficient Authorizations: The user executing the insert may not have the necessary permissions to write to the table.
  Database Corruption: In rare cases, there may be corruption in the database that prevents the insert operation.
  
  Solutions:
  
  Check Constraints: Review the constraints defined on the table to ensure that the data being inserted complies with them.
  Validate Data Types: Ensure that the data types of the values being inserted match the definitions in the database schema.
  Review Null Values: Check if any non-nullable fields are being assigned null values and correct them.
  Transaction Management: If locking is suspected, check for other transactions that may be holding locks on the table. You may need to wait for those transactions to complete or resolve any deadlocks.
  User Authorizations: Verify that the user has the necessary authorizations to perform the insert operation on the specified table.
  Database Health Check: If corruption is suspected, perform a database health check and consider restoring from a backup if necessary.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) to check the table structure and constraints.
  ST22: Check for short dumps that may provide additional context about the error.
  SM21: Review the system log for any related error messages or warnings.
  SQL Trace: Use transaction ST05 to trace SQL statements and see the exact SQL being executed, which can help identify the issue.
  
  Conclusion:
  To resolve the error message 1G018, you will need to analyze the specific context in which the error occurred, including the data being inserted and the structure of the target table. By systematically checking the potential causes listed above, you can identify and rectify the issue.