iDoc file type while using iDoc as source

Hi All,

I am developing a job which extracts data from SAP ECC system using iDoc as source.

I am getting below error.

[IDoc File Source:DEBMAS01(SAP_DataStore.)]

The IDoc file for <IDOC DEBMAS01(SAP_DataStore.)> is not defined. (BODI-1111053)

I need to specify the iDoc file but do not know what should be the file.

Attachking the snapshot of the configuration.