How To Fix /CFG/DSY021 - It's not allowed to create records for DS &1 from customizing tables

/CFG/DSY021 - Overview

• Message type: E = Error

• Message class: /CFG/DSY -

• Message number: 021

• Message text: It's not allowed to create records for DS &1 from customizing tables

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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/CFG/DSY021 - Details

• The SAP error message /CFG/DSY021 indicates that there is an attempt to create records for a specific Data Source (DS) from customizing tables, which is not allowed. This error typically arises in the context of SAP's Data Source configuration, particularly when working with SAP BW (Business Warehouse) or SAP S/4HANA systems.
  
  Cause:
  
  Customizing Restrictions: The error is triggered because the system has restrictions on creating records for certain Data Sources directly from customizing tables. This is often a safeguard to maintain data integrity and consistency.
  Incorrect Configuration: There may be an issue with the configuration of the Data Source or the associated customizing settings that prevent the creation of records.
  Authorization Issues: The user may not have the necessary authorizations to create records for the specified Data Source.
  
  
  Solution:
  
  Check Customizing Settings: Review the customizing settings for the Data Source in question. Ensure that the Data Source is correctly configured and that there are no restrictions