how to store the failure Idoc in ztable

Hi Experts,

I am new to SAP IDOC’s.

I have a one Ztable which is storing failure error idoc number, status and error description.

But I am not getting how this table is updating and where the code is written to update this table..?

I tried in tcode WE57 which is storing FM for idoc, so used basic type (RSINFO) and message type (RSINFO) I got one FM but in this ztable is not updating and it’s not enhanced

I tried ztable where used list I am getting database table ztable not found in selected search area (I selected all search options also)

Please help me on this.