Solution : https://service.sap.com/sap/support/notes/639927 (SAP Service marketplace login required)
Key words : 
/orcustomer credit management und customer credit management central, change history date          topic        short description------------------------------------------------------------------------, transaction /nfbtp creditor central, release strategy note                      138212 problems, installations/delta upgrade cd 51019985, terms abap add-, installing pdb-add-, install pdb-add-, required add-ons, installed pdb-add-
Related Notes : 
       
| 138213 | Release strategy for PDB Add-On "D&B for SAP R/3" | 
| 138212 | Overview note PDB Add-on "D&B for SAP R/3" |