ELM Process not getting started

Hi Experts,

In our project, we are facing one issue in External  List Management (ELM). We are using 3 mapping formats but it's not getting started in any of the formats.

We have done all settings :

1) Workflow customizing

2) Automatic Workflow customizing in Swu3

All settings are same as development system. This ELM process is running fine in Development system but it's not starting aromatically in quality system. However when we debug the ELM BaDI then ELM process is running smoothly in quality system.

I need your help on this issue. What can be the reason for this problem??

Regards,

Sunil Kumar