try following...
standard report /SAPSRM/IBO_FILL_TABLES in SRM 7.0 that updates Inbox tables for all standard tasks:
IBO_C_WF_ACS
IBO_C_WF_APS
IBO_C_WF_CAS
IBO_C_WF_TAS
IBO_C_WF_TTAS
Use these views in SM30 to create entries for customer specific tasks:
IBO_V_WF_ACC
IBO_V_WF_APC
IBO_V_WF_CAC
IBO_V_WF_IRA
IBO_V_WF_TAC
IBO_V_WF_TTAC
Regards
Konstantin