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## 11 Multi Level ACK/NACK

In case of Bulk file processing, Bank generate Acknowledgement of receipt for each transmitted file along with status at various stage

Acknowledgment files are sent at a predefined interval. They contain data that are used to:

- Verify the receipt of a file
- Notification regarding successfully completing a processing stage
- Acknowledge that a file was processed successfully
- Notify to the corporate of problems with a file processing at a particular stage

Oracle Banking Electronic Data Exchange for Corporates supports multi-level ACK / NACK responses at various stages of file processing to update the corporate about the file status depending upon the corporate preferences set up during maintenance.

These ACK/NACKs can be defined as mandatory or non-Mandatory depending upon the stage on which they are being sent.

For all the mandatory ones, the bank user should mandatorily define the expected format and channel in corporate preferences.

At the time of implementation, the Bank can decide if they want to change any Mandatory ACK/NACK to optional or vice versa. Depending upon the configuration of mandatory and Non-mandatory ACK/NACK, the list will be shown in the corporate preference screen.

In, Oracle Banking Electronic Data Exchange for Corporates, the stages where the ACK/NACK response are required to generate will be specified as per below mention table.

Bank user can define and modify the ACK/NACK/Response file requirement as per the corporates requirement to receive the response at various stages of file Processing.

Table 11-1 Multi Level ACK/NACK

Stage | Mandatory/Optional
--- | ---
Pre-Parsing | Mandatory
Parsing & File Validation | Mandatory
Record Validation | Optional
Sent to Host | Optional
Host Response | Mandatory

Pre-configured ACK/NACK for each processing stages are as below:

Processing Stage | ACK/NACK will be sent on
Pre parsing | Pre-parsing check Success
Parsing | Parsing Success/Failure
File Validation | File Level Dedupe Failed
File Validation | File Level Limit Check Failed
Record Validation | Transaction Level Dedupe Failed/Success/Partial Success
Record Validation | Record level limit validation Failed/Success/Partial Success
Sent to Host | Approval - Multiple Responses
Host Response | Multiple Responses as per response received from Host