Error
Error Code:
355
SAP S/4HANA Error 355: Missing Primary Key in Update Log Table
Description
Error 355, ERR_SQL_UPDATE_LOG_TABLE_KEY, indicates a fundamental issue where the base table associated with an update log table lacks a defined primary key. This error typically occurs during database operations, data updates, or system processes that rely on proper table structure for logging changes, preventing successful data manipulation or transaction recording.
Error Message
ERR_SQL_UPDATE_LOG_TABLE_KEY: The base table of the update log table must have a primary key
Known Causes
3 known causesIncorrect Table Definition
The base table for the update log was created or modified without a primary key being properly defined or activated.
Database Schema Inconsistency
Discrepancies exist between the expected and actual database schema, possibly due to failed migrations, manual changes, or incorrect transport imports.
System Upgrade/Patch Issues
During a system upgrade or patch application, the table structures were not correctly adapted or updated, leading to missing primary keys.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service