How To Fix RSAR821 - DataSource name for 3rd-party system is too long

RSAR821 - Overview

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 821

• Message text: DataSource name for 3rd-party system is too long

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSAR821 - DataSource name for 3rd-party system is too long ?

  The SAP error message RSAR821 indicates that the DataSource name for a third-party system exceeds the maximum length allowed by SAP. This error typically occurs in the context of SAP Data Warehousing or when working with SAP Business Warehouse (BW) and its extraction processes.
  
  Cause:
  The primary cause of this error is that the DataSource name you are trying to use or create is longer than the maximum length allowed by SAP. In SAP BW, the maximum length for a DataSource name is usually 30 characters. If the name exceeds this limit, the system will throw the RSAR821 error.
  
  Solution:
  To resolve the RSAR821 error, you can take the following steps:
  
  
  Shorten the DataSource Name: 
  
  Review the DataSource name you are trying to use and ensure it is 30 characters or fewer. If it exceeds this limit, modify the name to make it shorter while still being meaningful.
  
  
  
  Check Naming Conventions: 
  
  Ensure that you are following