SICSR-17750

[SICSR-17750] Previous paid validation - 4.9.3
Product Line:	P&C
Component/s:	eMessaging
Affects Version/s:	SICS 4.9.3
Fix Version/s:	SICS 20.1
Customer:	Swiss Re Zurich
External Issue ID:	PRB000608024

Problem:
The test for previous paid finds the most recent booking for each entry code to obtain the previous paid amount, however when a single balance has multiple bookings on different AC for the same Entry Code then the previous amount across all AC is added for each detail (AC). This results in the amounts booked for an EC prior to the previous balance being multiplied per each on that balance AC. e.g. .Previous Balance EC1 - amount AC1 + amount AC2 + prior amounts accross all AC *2

Solution:
When the previous balance has multiple bookings for AC then only the current amount on that balance for each AC / Entry Code should be added to the total along with a single prior summed amount per EC only across all AC.

Workaround:
If the previous amount on the claim ledger matches the Message Previous Paid Amount then simply override the error.

Root Cause:

Extent of Impact:
CheckPreviouslyPaidAmountOnSicsClaim where the Previous Claim Adjustment has multiple AC booked for an included Entry Code.

Impact on Existing Data

Recovery Method for Existing Data Affected