I need help error of starting balance

Sir I need good solution 2017.12.31 balance manager settings la change starting date 2018.01.01 change auto closeing balance all inventory items balance so I need good solution plz answer me

i did not clearly understand your question.
but from what i have understood i think you have set the start date to 2018.01.01
this is wrong. start date should be set only when you are migrating your business data to Manager from another software.
read this guide Manager Cloud
if you want to show only the details of the current financial year starting on 2018.01.01, then you should just change the summary date.
read this guide Manager Cloud

Thank you sooooo much good solution success