How To Fix GT654 - Table & has type (&, &); no updates possible

SAP Error Message - Details

• Message type: E = Error

• Message class: GT - Database utilities

• Message number: 654

• Message text: Table & has type (&, &); no updates possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message GT654 - Table & has type (&, &); no updates possible ?

  The SAP error message GT654 indicates that a specific table is defined with a certain type (e.g., "C" for cluster tables or "P" for pooled tables), and as a result, updates to that table are not possible. This typically occurs when you attempt to perform an update operation on a table that is not designed to support direct updates.
  Cause:
  
  Table Type: The table in question is either a pooled table or a cluster table. These types of tables are designed for specific purposes and do not allow direct updates.
  Data Model: The data model in SAP is structured in such a way that certain tables are meant to be accessed through specific transactions or programs rather than being updated directly.
  Authorization Issues: Sometimes, the error can also arise due to insufficient authorizations to perform the update operation.
  
  Solution:
  
  Check Table Type: Verify the type of the table you are trying to update. You can do this by checking the table definition in the Data Dictionary (transaction SE11).
  Use Appropriate Transactions: If the table is a pooled or cluster table, you should use the appropriate SAP transactions or function modules designed for updating the data. For example, use the relevant application transactions that handle the data for that table.
  Custom Programs: If you need to update the data programmatically, consider using the appropriate function modules or BAPIs that are designed to handle updates for that specific table.
  Authorization Check: Ensure that you have the necessary authorizations to perform the update operation. You may need to consult with your SAP security team if you suspect authorization issues.
  
  Related Information:
  
  Pooled Tables: These are tables that store data for multiple applications in a single table. They are used to optimize database storage.
  Cluster Tables: These tables store data from multiple tables in a single table structure, which is also aimed at optimizing storage and performance.
  Data Dictionary (SE11): You can use this transaction to view the structure and properties of tables in SAP.
  Function Modules and BAPIs: These are standard SAP methods for interacting with the database in a way that respects the underlying data model.
  
  If you continue to face issues, consider reaching out to your SAP Basis or development team for further assistance.