Solution : https://service.sap.com/sap/support/notes/607000 (SAP Service marketplace login required)
Key words : 
guid function iii 614553 short dump message_type_x due, user-defined fields        support packages, notes correct general program errors, restore initial status        support packages, checked/set incorrectly        support packages, dialog settlement rule        support packages, external purchasing system        support packages, 586151 pi-bapis create/change network, 580136 pi-bapis create/change network, deleting wbs element        support packages
Related Notes : 
       
| 668360 | New BAPIs: Dump in Precommit | 
| 634869 | SAPKU40001: Support Package 01 for CRM 4.0 | 
| 628048 | CNIF_PI: Subobjects are not scheduled | 
| 627754 | CNIF_PI091 when replicating new WBS elements | 
| 625171 | Dates of subactivities set by External | 
| 622426 | New BAPIs: various minor corrections | 
| 616394 | New BAPIs: Error CNIF_PI054 for the Precommit | 
| 614553 | Short dump MESSAGE_TYPE_X due to NESTED_PERFORM_ON_COMMIT | 
| 611507 | Personnel number for activity element | 
| 608790 | BAPIs:Specifying dates and duration simultaneously | 
| 607056 | Network: User-defined fields | 
| 606701 | CJV4: Purchase requisition is not deleted during transfer | 
| 604989 | BAPIs: Not possible to change the project stock | 
| 604931 | Dialog box in CJTR_POST_DATES | 
| 602776 | BAPI: object class entered in wrong language: no error msg. | 
| 602448 | BAPI mass change: External processing data, control key | 
| 601087 | Simulation profile not transferred from project profile | 
| 599771 | BAPI: Creation of inconsistent project definition possible | 
| 597502 | Connecting the GUID function III | 
| 595484 | Create activity via BAPI, control key: MESSAGE_TYPE_X | 
| 590934 | BAPI, network, change WBS element: CN033 | 
| 589248 | BAPIs: Creation with dates fails | 
| 588893 | BAPI, header-assigned network: Dialog settlement rule | 
| 588124 | Setting up/changing hierarchy leads to online mssges in BAPI | 
| 587916 | Connecting the GUID function 2 | 
| 586151 | PI-BAPIs Create/change network: CORE corrections II | 
| 580136 | PI-BAPIs create/change network: CORE corrections | 
| 579417 | Connecting the GUID function | 
| 574864 | Create subnetwrk: Acc assgt + others checked/set incorrectly | 
| 569765 | FORM routine NETWORK_DELETE_CHECK (SAPLCOKO) not w/o dialog | 
| 563486 | Module CO_ZF_CHECK_SUBNET is not without dialog | 
| 561142 | Message e593 during the upload of OpenPS | 
| 549340 | Incorrect check for object class with mass change | 
| 546919 | Douplicated heading in error log from status check | 
| 521091 | EPS:Release not taken into a/c during creatn of actvty elmnt | 
| 448583 | Prepare Message Handler, restore initial status | 
| 367097 | Performance when deleting/WBS elem. deletion indic | 
| 364934 | COCM: optimize search for procurement elements | 
| 320253 | Changed partner data is not printed correctly | 
| 317882 | EPS: No check when deleting WBS element |