Append structure vs custom table
What are the pro's and con's of using an append structure on a standard SAP table vs using a custom table with the same primary key to store the information?
For example: we have a custom table that stores additional information about certain types of notifications. The custom table has the same primary key as QMEL. There is a one-to-one relation between the custom table and QMEL for those certain types. The action box is used to update the custom table.