CKMSTART and Stock upload in different Periods

Hello CO Masters , I have a question Our go live was scheduled for july so we run CKMSTART in june to upload the Materials as on 30th JUne 2017 but it was postponed and now our go live is in Aug and stock upload on 31st july what will be the impact and precautions to be taken

1.Stock upload as on 31st july

2.Run ML for June

3.Change MM period to 7

4. Run ML for July

Is this the correct approach , Should i take anything else into consideration