UOW Load

After loading data the system identifies the distinct set of UOW keys for the records that were inserted, modified or refreshed in the load, creates an execution set consisting of these units of work, and processes all records within these units of work and no others. Any records in a unit of work included in the execution set that is not included in the file is deleted.

This is the only type of UOW processing available during data loading. If you want different deletion behavior you can use Reload processing; see Table 8-8.

Note:

Use UOW Load mode only if the file being loaded contains the full current set of data (new, modified and unchanged) for subjects or subject visits with any new or modified data because any data not reloaded in processed units of work will be deleted.

Instead, use Incremental Reload processing to load data containing just new or modified records.

Table 8-7 Deletion Behavior in Unit of Work Processing Modes

Unit of Work Mode	Delete within Reloaded Unit?	Delete All Records for Nonreloaded Unit?
UOW Load	Yes	No
Full UOW	Yes	Yes
Incremental UOW	No	No