Solution : https://service.sap.com/sap/support/notes/487673 (SAP Service marketplace login required)
Key words : 
message type ld00 reason, dangerous goods specifications contained, delivered text pattern phrases, assign separate text patterns, previous delivery note anymore, assign default text patterns, identify default text patterns, customer-specific print program, assign text patterns, dangerous goods master
Related Notes : 
       
| 692664 | Dangerous goods: Upgrade EH&S 2.2B to higher EH&S versions | 
| 493044 | Composite SAP Note: Relevant notes for EHS dangerous goods | 
| 487724 | DG on delivery note: How to define default text patterns | 
| 486497 | Dangerous gds on dely notes:How to get txt pattrns into syst | 
| 453250 | No dangerous goods data on delivery note: Possible causes |