Source System Dependent BI Objects

Question

When working with Source System Dependent Objects like
1) DataSources (based on source system ABC)
2) InfoPackage (based on source system ABC)
3) DTP (source is datasource that is based on source system ABC)
Question 1)
Once we create the obove objects in DEV system.
If we update the IMG activty in QA (Source system conversion after transport).
and transport the above objects to QA system.
All the above objects should be available with new source system in QA? Is this the right way to do it?
Question 2)
Once we create the obove objects in DEV system.
If we DO NOT update the IMG activty in QA (Source system conversion after transport).
and transport the above objects to QA system.
Some of the above objects are not available with the new source system?
Workaround: Go to RSA1 (Top Menu -> tools --> they are couple of options where we can enter 1) source and target source system info AND 2) do a check, activate and replicate source systems.
After this some more objects are visible but not all? Is there any other way i can complete the conversion?
Question 3) I tried the below in an other landscape
Once we create the obove objects in DEV system.
we DID NOT update the IMG activty in QA (Source system conversion after transport).
and transported the above objects to QA system.
FYI: All objects with source system in QA are available. I am wondering how the source system conversion took place?
Question 4) When we enter source system for DEV and QA in QA system, Do we need to enter even PC file source systems?
Example:
1) ABC in DEV = BCD in QA
2) PC_FILE in DEV = PC_FILE in QA
Thanks for your help.

Answer 1

Below are the following ways to do the mapping in Target System for Sourse System Conversion:
1) rsa1->tools->source system mapping OR
2)rsa1->transport connection->'conversion of log.system'(yellow box with 'x' and 'conversion' icon) OR
3) spro->bus info warehouse->transport settings->change source system name after transport (transaction rslgmp) OR
4)maintain table RSLOGSYSMAP (sm30)
Que1.
Yup
Que2.
if no maintenance done, system will transport as the same source system name. You have to convert everything manually...cumbersome process.
Que4.
Normaly for flat file we use the same name, to avoid any warnings, we just maintain the 'conversion' with the same name