[SICSR-16443] UPR calculation result(Accounting Period) is different between System Parameter and IR condition.
Product Line:	P&C
Component/s:	Accounting Orders
Affects Version/s:	SICS 4.9.3
Fix Version/s:	SICS 4.9.4 SICS 4.6 SSP17 TOA21
Customer:	Toa Reinsurance Company Limited Japan
External Issue ID:	IMPL-1990

Problem:
The Unearned Premium Reserve Order does not always populate Accounting Period correctly

Solution:
Add AccPeriod (AccRefPeriod) as a grouping Level to Ensure correct AccPeriod on Unearned Premium Details

Workaround:
None

Root Cause:

Extent of Impact:
Incorrect Accounting Period in some situations

Impact on Existing Data

Recovery Method for Existing Data Affected