Our payroll system is going live soon. The FI system will go live later. So posting to FI will happen at a later time. Meanwhile we need to generate interface files to load to legacy FI systems. This is also in place.
Now assuming we go live in May, should we run posting for each month starting from Jan? Or if I run one posting in April to clean up the system will the system will generate correct results from May? Would SAP pull data for all the non posted periods?