# CreateLogsBackfillJob Parameters for a logs backfill. **Type**: `object` ## Properties - name: dataType (required) type: enum: `logs` description: Selects the built-in logs backfill template. - name: datasetId (required) type: string description: The dataset the backfill reads from and the dedup sinks track delivery in. - name: end (required) type: string description: End of the time interval to backfill. - name: limit (optional) type: integer description: Maximum number of rows to backfill. Default and max is 500,000. For spans this applies independently to each vendor source. A negative value means no limit. - name: name (required) type: string description: Name of the backfill job. Must match the job name pattern [a-z0-9_]{1,128}. - name: query (required) type: `EventPredicate` - name: sinks (required) type: array of `Operation` description: The vendor sink operations that deliver the backfilled events. Passed through verbatim, matching the sinks a rule action would carry. - name: start (required) type: string description: Start of the time interval to backfill, inclusive. - name: tags (optional) type: object description: Custom tags added to the backfill job for ease of search. - name: teamIds (optional) type: array of string description: The team IDs that the backfill job is associated with. - name: variables (optional) type: object description: Variables used to modify the query while it is parsed. - name: vendorSinkIntegrationIds (optional) type: array of string description: Vendor integration IDs, if any, whose prior delivery the backfill skips. Also gates concurrent overlapping backfills. Empty (the default) does no per-vendor dedup join and never blocks on other backfills.