Translate SAP Smartforms is explained step by step in the following SAP ABAP tutorials.
Note that you have to transport the translation.? First, how to navigate to SAP Smartforms translate tools and then how to translate it.
In order to get all Notification Text (QMEL, IFLOAT, … ), the standard way to do is to call the READ_TEXT which works fine.
But when we have to retrieve texts simultaneously of thousands of Notifications, the READ_TEXT in loop will be not for performance as it performs connection to database then FETCH data.