Closed fiscal year does not agree with legacy data transfer date

[Former Member]

Dear Expert,

We had one  Company code with two unit. In first unit AA has been 
implemented the in fiscal year 2009 but in second unit we want implement 
with effect form 01.01.2017. But when we are trying to enter data in 
Transaction code AS92 after creating the asset in sap in Transaction 
code AS01 we are getting an error message"

Closed fiscal year does not agree with legacy data transfer date" while 
take over date is 31.03.2009.
If we change the take over date in sap asset accounting, then what would 
be the impact of that? Can we proceed with this option or not ? What are 
the other option?

Thanks
Ajay