Inbound Proxy Error Handling with Forward Error Handling

Hi

We are sending multiple records(Batch) to Inbound Proxy from SAP PO.

1) Can any one suggest what is the best approach to handle the errors that occurred for some of the records, when processing in the proxy (Its a ZTable/ZBapi) We want to have a mechanism where we can use restart facility for that particular record.

I have seen Forward Error handling document How To Setup Forward Error Handling in PI Scenarios

Please let me know if any one has used this feature and is this better approach to handle the errors instead of writing to a file and reprocess in other way. Do we need to have any add on for this or we can use in ECC by configuring as mentioned in the blog by michael ealrier?

Or Is it better to use file approach and inform ECC team to pick the file and process at their side?

Thanks and Regards,
Sridhar