Import process

A batch to import refers to a target batch that you can run because the source batch has already been run.

Before you run a regular import batch, Exchange checks whether an active exchange link exists for that batch at the target site. If no exchange link exists, Exchange runs an ordinary import. If an active exchange link is available, Exchange checks the batches to import. If no batches await import, Exchange does not perform an import. If a batch is awaiting import, Exchange performs the following functions, and repeats the process for subsequent batches to import:

Copies the files from the source site.
Removes the run from the batches to import and deletes the run’s batch lines to import.
Runs the import.
Sends an Import Done message to the source site.

The import process takes some time to complete, which means that while Exchange is busy processing one batch to import, new batches to import can arrive. Exchange continues to check for new batches until all the batches are imported.

Exchange usually runs a regular import only if no exchange link exists or if one or more batches are awaiting import. You can overrule this, however, and initiate an import batch without having Exchange perform these checks.

Note: Each batch to import is processed in order of the run number and the try number within each run. The run number refers to the sequence order of a process within an exchange scheme. The try number is the number of attempts made for each run. If Exchange cannot process one import batch, Exchange stops and does not continue processing subsequent batches. If required, you can delete the problematic batch so that Exchange can continue with the subsequent batches.