Message type: E = Error
Message class:  RSO_SEGR - Messages for TLOGO = SEGR  (Semantic Group of ADSOs) 
Message number: 204
Message text: Metadata for template &1 not found
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.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message RSO_SEGR204 indicates that the metadata for a specific template (identified by &1) cannot be found. This error typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when dealing with queries, reports, or templates that rely on metadata definitions. Causes: Template Deletion: The template may have been deleted or is no longer available in the system. Transport Issues: If the template was transported from one system to another (e.g., from development to production), the transport may not have included all necessary metadata. Authorization Issues: The user may not have the necessary authorizations to access the metadata for the template. System Configuration: There may be inconsistencies in the system configuration or issues with the BW/BI environment. Incorrect Template Name: The template name provided may be incorrect or misspelled. Solutions: Check Template Existence: Verify that the template exists in the system. You can do this by navigating to the relevant area
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
RSO_SEGR203 Name of template DataStore object is not specified
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RSO_SEGR202 Name of semantic group is not specified in header
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RSO_SEGR205 '&1' has invalid TLOGO type '&2' (expected '&3')
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RSO_SEGR206 No InfoArea specified
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.