If you use the batch output query, you can sort the letters in the order of the batch on the Output tab, by selecting sort in the right frame. In the left frame, select Do not sort letter run. This will then use the sort order of the batch output query.
Note:The gift batch must be committed prior to running Donor Acknowledgement Letters. Uncommitted gifts in a batch are not actual gifts in The Raiser's Edge until they are committed.