Hello Suvarna,
First of all you would need to ensure DNL_CUST_PROD1 is downloaded fully.
If every initial load of DNL_CUST_PROD1 goes to a WAIT state in R3AM1 my guess is it is not getting enough work processes to execute itself.
Solution:
Just go to table SMOFPARSFA in CRM and search for the variable MAX_PARALLEL_PROCESSES
. Keep its value as 10 or 15. This just signifies how many Initial+Request+DIMA loads can be started in parallel from CRM. IF you have enoguh dialog work processes avaialble, keeping this value as 15 wil do no harm.
Next to solve the Inbound queue scheduler issue, just goto SMQR, select all the queues And deregister them in 1 shot. Then wait for about 10 seconds, select all queues and then Register them. This way the queue scheduler would restart and start processgin the inbound queues.
You can try the same thing out for Transaction SMQS as well.
Let me know if this solves your issues.
Regard,s
Rohit