ABAP/Screen Generation 
The standard settings in Add-On Installation Tool prevent the generation of any ABAP programs or screens during the installation process (see Defining the Settings in Add-On Installation Tool). The relevant programs are generated only when they are called. However, you can define Add-On Installation Tool in such a way that these objects are generated during the installation process. Alternatively, you can start generation of all imported objects after the import process, using the SAP Load Generator.
Add-On Installation Tool may return error messages during generation, for example if it finds errors in a program written by the customer or a modification to an existing program.
It is usually best to ignore the generation error at first and correct it after the Support Package has been imported.
You are importing an add-on.
To influence the generation of ABAP programs and screens, choose Extras on the initial screen in Add-On Installation Tool and then choose the following:
Function |
Menu Option |
|---|---|
Switch generation on and off |
Settings |
Ignore generation errors during import |
Ignore Generation Errors |
If you deactivated generation in the Add-On Installation Tool settings, you can use the SAP Load Generator to perform generation after an add-on has been imported.
Recommendation
We recommend that you use this method for ABAP/screen generation of large numbers of objects after installing large add-ons. The SAP Load Generator saves you time, since the generation set is processed in parallel on multiple application servers.
To start ABAP/screen generation for the objects in the installed add-on, proceed as follows:
Call the SAP Load Generator (transaction SGEN).
Choose Generate All Objects of Selected Software Components and then Continue.
Select the software component of the installed add-on.
You can thus ensure that all objects in the installed add-on are generated again.