Solution : https://service.sap.com/sap/support/notes/427216 (SAP Service marketplace login required)
Key words : 
installation/delta upgrade cprxrpm 450_700, installation/delta upgrade cprxrpm 500_702, cd51016067 installations/upgrades cprojects, solution installation/delta upgrade, cd51016067 delta upgrade cfolders 1, sap xapp resource, cprojects add-ons, 1377104 faqs - sap portfolio, project management reason, 2003 upgrade cprojects 200 --> cprojects 300
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| 754723 | CRM 4.0 SP Stack 9/2004 Support Release 1: Release Note | 
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| 717650 | cProject Suite 310: Installation and Upgrade | 
| 709921 | CRM 4.0 SP Stack 4/2004 (SAPKU40005): Release & Info. Note | 
| 696262 | CRM 4.0 SP Stack 1/2004 (SAPKU40004): Release & Info. Note | 
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| 634869 | SAPKU40001: Support Package 01 for CRM 4.0 | 
| 612988 | cProjects 300: Installation and upgrade using SAINT | 
| 536926 | cProjects 200: Add-on installation using SAINT | 
| 458141 | cFolders 1.10: Add-On installation and delta upgrade |