Solution : https://service.sap.com/sap/support/notes/544509 (SAP Service marketplace login required)
Summary : 
      This SAP Note discusses the requirement to convert logical system names using ALE, as outlined in note 121163, primarily through transaction BDLS. This process is recommended when development or quality systems, populated with production data, need logical system names adjusted to fit their environment. The note emphasizes that conversions should only be carried out in development or quality systems and not in production environments. If a conversion is necessary in a production context, the engagement of SAP Support is advised to avoid potential risks.
Key words : 
assigned unique names, local support team, entire system infrastructure, quality assurance systems, quality systems, production system, logical systems, production systems, rbdprose reason, test landscapes
Related Notes : 
       
| 983448 | |
| 121163 | BDLS: Converting logical system names |