Hi Madhu
Your screenshot shows that DynamicConfiguration section is available with some Seeburger AS2 attributes. This means that ASMA in sender AS2 is automatically activated (no separate checkbox to activate or inactivate it.)
The problem is the sender AS2 application (in your case the AS2 front end tools) are not populating the particular dtAS2FileName attribute. You can see that other Seeburger attributes are there except that.
The Dynamic Configuration module will work once your sender AS2 application populates the filename.
Rgds
Eng Swee