[SICSR-15902] Payment Partner on wrong UW Year
Product Line:	P&C
Component/s:	Accounting Technical Worksheet
Affects Version/s:	SICS 4.7 SSP22
Fix Version/s:	SICS 4.9.3 SICS 4.6 SSP17 TOA18
Issue Links:	is duplicated by SICSR-16165
Customer:	Milli Re

Problem:
We have Business which has a different Cedent on the 2017 UW Year compared to the 2018 UW Year.
If booking takes place on both UW Years on the same worksheet the system will in some situations set wrong Cedent as Payment Partner on the balances.

Solution:
When creating a worksheet on a business with multiple Insured Periods and with different Payment Partner (Cedent or Broker with the Payment task) on the different Insured Periods, make sure that when the user change the Insured Period on one of the details on the worksheet, that the system 1) correctly split the detail with the new IP in a separate balance and assign correct Payment Partner to it (this is already correct today) and 2) keeps the Payment Partner on the existing balance.

Workaround:
If there are different partners with the Payment Task on different Insured Periods on a business, make sure you book the accounts from the differnet partners on separate worksheets.

Root Cause:
Very old issue. When one balance is created and populated then adding another booking resets the values of the original booking before splitting out separate balances. If there are multiple balances to begin with that are populated then no such problem.

Extent of Impact:

Impact on Existing Data

Recovery Method for Existing Data Affected