When an outbound process starts,

B2B Gateway

first runs the custom process from the process-from-backend mapping that you defined in the partner definition and reads the data from the backend system.

If you assigned values to mapping parameters during partner configuration,

B2B Gateway

uses the values in the mapping flow.

The mapping writes the data to an interface file on

B2B Gateway

.

If during partner configuration you assign an outbound mapping for the flow,

B2B Gateway

runs the mapping and sends the files to your partner.

If you assigned values to mapping parameters during partner configuration,

B2B Gateway

uses the values in the mapping flow.

If you did not assign an outbound mapping, the outbound process ends with the placement of the interface files on

B2B Gateway

. You can use your own method to send the files to your partner.