Solution : https://service.sap.com/sap/support/notes/620547 (SAP Service marketplace login required)
Key words : 
getwa_not_assignedgetwa_not_assigned/sapcnd/saplmaintenance_ow /sapcnd/lmaintenance_owu10/sapcnd/mnt_save_ow solution implement, runtime error getwa_not_assigned occurs, save unsaveable condition records, implement subsequent note 622862, save condition records, terms condition technique, condition maintenance reason, program error, stop character, program correction
Related Notes : 
       
| 634869 | SAPKU40001: Support Package 01 for CRM 4.0 | 
| 622862 | DUMP GETWA_NOT_ASSIGNED in module /SAPCND/MNT_SAVE_OW |