Does SAP overwrites the complete prog or applies just new changes?
We have a custom program, say Z_PROG, wherein 2 developers are working on the same program simultaneously under different transports, well.
Say, developer A added 10 lines code to Z_PROG by using TR_A and moved the TR_A to acceptance.
Now, developer B added 5 lines code to Z_PROG by using TR_B and moved the TR_B to acceptance.
Now, the acceptance's Z_PROG has all changes of 15 new lines code addition, at this point if we move ONLY the TR_A from acceptance to production, pl. let us know
1) Whether the Z_PROG in production consists only developer A's changes of 10 lines code addition or
2) the Z_PROG gonna consist all (developer A and developer B - 10+5) changes of 15 lines code addition?
Also, pl. let us know that when we move a program to next environment then whether the SAP overwrites the whole program completely or whether SAP just implements the fresh new changes to the program?