Solution : https://service.sap.com/sap/support/notes/1109876 (SAP Service marketplace login required)
Key words :
class /scdl/cl_adapter_stm checks, inbound delivery notification, symptom method remove_dispensable, remove_dispensable reason, status type, completion request, longer resets, completion status, terms status, program error
Related Notes :
1127031 | Completion indicator in document flow nodes not set |