In upgradiation project SPDD and SPAU Aare the main transactions. Upgradiation project are like 1.Technical Upgrade 2.Functional Upgrade In technical project process steps like 1.System preparation and stack level patch upgrade – Basis Team 2.SPDD Phase – ABAP and Functionals 3.Up gradation of the system – Basis Team 4.SPAU Phase – ABAP and Functionals 5.DBACOCKPIT for indexing – ABAP TEAM 6.Issue resolution and error tracking – ABAP and Functionals 7.Zprograms corrections – obsolete function modules and objects In SPDD Phase This transaction code SPDD is the core step in an upgrade project. The system compares all the dictionary objects – data elements, database tables and structures of the latest system (say ECC) with the previous or the old system (Say 4.6c). These all elements are present under two nodes – with modification assistant and without modification assistant. Objects present under with modification assistant have the mo...