Solution : https://service.sap.com/sap/support/notes/1049351 (SAP Service marketplace login required)
Key words : 
installment condition generation 1050155 falsche berechnung des laufzeitendes bei zahlungsaussetzung scenario collateralization, solution manager st ico 150 patch level 7 pay attention, payment plan change feature1039086 billing reversal correction, open item management1038590 billing reversal correction, approved coverage gap capital yield tax 5, 0 system business solution configuration erp 2005 depending, reversing payment plan change1049230 error, function module bca_api_cn_acpool_chk_acn1045208 master contract, proxy guids1030659 set update task, generate proxy entry1026159 short dump
Related Notes : 
       
| 1052055 | CRM - FS-AO scenario for SAP Banking Services 5.0 | 
| 1050894 | CMS RFCs for Integration with Loans and Current Accounts | 
| 1050808 | CMS integration with other components via RFCs | 
| 1050530 | Missing RFC for determining the loan capital amounts | 
| 1050416 | AM integration with other components via RFCs | 
| 1050308 | Customer Inculde structures in Bill documents | 
| 1050155 | Incorrect calculation of term end in skip order | 
| 1049737 | RFCs for account change messages are missing | 
| 1049588 | Error during the Installment condition generation | 
| 1049257 | SP3: Error in include LBCA_OBJ_OR_PPCF23 | 
| 1049230 | Error when determining billing periods | 
| 1048489 | PDF application forms not in standard CYT 5.0 system | 
| 1047652 | Short dump while calling DMS from platform release | 
| 1046484 | Error when reversing payment plan change | 
| 1046081 | Not able to create any CMS entity and Approved Coverage Gap | 
| 1046054 | Master contract cannot be terminated | 
| 1046048 | Not able to create approved coverage gap | 
| 1045940 | ERP2005: Switch for 'Lifecycle of an Installment' scenario | 
| 1045208 | Master contract cannot be displayed | 
| 1043764 | SP3: Error in function module BCA_API_CN_ACPOOL_CHK_ACN | 
| 1043049 | Additional tasks after Installation/Upgrade of FSAPPL100 SP2 | 
| 1042666 | After import dump in NetWeaver standalone system with SP1 | 
| 1042230 | CYT attribute is checked even when it is not active. | 
| 1041531 | SP2: Error in include LBCA_OBJ_OR_PPCF23 | 
| 1039086 | Billing Reversal correction for TRBK | 
| 1038590 | Billing reversal correction for TRBK | 
| 1037407 | SP2: Missing product checks for payment plan change feature | 
| 1035212 | Shortdump in Account Proxy on call in different Systems | 
| 1033521 | Change in enhancement implementation FICO_TEST_DEF_DIFF | 
| 1030659 | Set update task to local for db layer of account proxy | 
| 1030120 | Evaluation of rescission periods in payoff | 
| 1029367 | GET_GUID_FOR_ACCOUNTS_S returns various proxy GUIDs | 
| 1028459 | Not able define number ranges for collateral objects | 
| 1026159 | Short Dump in Transaction 'BCA_ACC_MST_RUN' | 
| 1025658 | GET_GUID_FOR_ACCOUNTS_S does not generate proxy entry | 
| 1024091 | Release limitations concerning SAP Banking Services 5.0 | 
| 1019464 | Correction of inbound TRBK-RFCs for open item management | 
| 1013851 | Consolidation FSPP Rel 1.0 SP01 downgrade 2007->2005 | 
| 954792 | Known problems with Support Packages in SAP NW 7.1 AS ABAP | 
| 895660 | Steps for Release tool customizing in collateral management |