How To Fix ER030 - Database inconsistency city &1, notify system administrator

SAP Error Message - Details

• Message type: E = Error

• Message class: ER - IS-U regional structure

• Message number: 030

• Message text: Database inconsistency city &1, notify system administrator

What causes this issue?

There are already meter reading units (ADRCITYMRU records) for city
number &V1&. However, this city does not exist yet. (It should be
created now.)

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 ER030 - Database inconsistency city &1, notify system administrator ?

  The SAP error message ER030 indicates a database inconsistency related to a city entry in the system. This error typically arises when there is a mismatch or corruption in the database records associated with city data, which can affect various functionalities within the SAP system, such as address management or master data processing.
  Cause:
  
  Data Corruption: The database may have corrupted entries due to system crashes, improper data imports, or other anomalies.
  Inconsistent Data: There may be inconsistencies between different database tables that reference city data.
  Custom Development: If there are custom programs or enhancements that manipulate city data, they may introduce inconsistencies.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), there may have been issues during the transport process.
  
  Solution:
  
  Notify System Administrator: As the error message suggests, the first step is to notify your system administrator or SAP Basis team. They will have the necessary access and tools to investigate the issue further.
  Check Database Consistency: The administrator can run database consistency checks to identify and rectify any inconsistencies. This may involve using transaction codes like SE14 (Database Utility) or SE11 (Data Dictionary) to analyze the affected tables.
  Review Change Logs: Check the change logs to see if any recent changes could have caused the inconsistency. This includes reviewing any recent transports or data imports.
  Data Repair: If specific records are identified as corrupt or inconsistent, the administrator may need to manually correct or delete these records.
  Backup and Restore: If the inconsistency is severe and cannot be resolved, restoring from a backup may be necessary, although this should be a last resort.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on resolving similar issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE14 (Database Utility), SE11 (Data Dictionary), and SE37 (Function Module) for troubleshooting.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is a known issue with a specific version of SAP.
  Documentation: Review SAP documentation related to data consistency and database management for best practices in maintaining data integrity.
  
  In summary, the ER030 error indicates a database inconsistency related to city data, and it is crucial to involve your system administrator to diagnose and resolve the issue effectively.