# Sync - S3 Destination - specifying subfolders and file naming options

**URL:** <https://community.cdata.com/t/sync-s3-destination-specifying-subfolders-and-file-naming-options/1322>\
**Category:** CData Sync\
**Tags:** question, s3-destination, subfolders, subfolder-rules, sync, cdata-sync, csv\
**Created:** [July 31, 2026, 3:03pm UTC](https://community.cdata.com/t/sync-s3-destination-specifying-subfolders-and-file-naming-options/1322 "2026-07-31T15:03:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mikelucito](https://avatars.discourse-cdn.com/v4/letter/m/b5a626/32.png) [@mikelucito](https://community.cdata.com/u/mikelucito)\
**Post date:** [July 31, 2026, 3:03pm UTC](https://community.cdata.com/t/sync-s3-destination-specifying-subfolders-and-file-naming-options/1322/1 "2026-07-31T15:03:04Z")

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We’re currently testing the S3 destination for various sources using CSV file format and would like to be able to do 2 things:

- Specify a subfolder per job or task
- Append the table name to the destination file

for example, if the S3 Connection is setup to a folder cdata/ i would like to be able to output the following structure

- cdata/
  - salesforce/
    - account/
      - account\_20260722113426039\_1.csv
      - account\_20260722113426039\_2.csv

    - contact/
      - contact\_20260722113426039\_1.csv

  - servicenow/
    - task/
      - task\_20260722113426039\_1.csv

..etc

The closest I’ve been able to get is appending something to the table/folder name, and I can’t find any usable option to control the file name format. I’ve tried changing the batch naming convention in the connection settings but it had no affect.

 ![64dca409-b8a2-4f4f-8f19-6d3137d34cb2.png](https://us1.discourse-cdn.com/cdata/original/2X/9/9cb6554885c5a1e31a10afb7cb9835c8047eb669.png)

- cdata
  - salesforce\_account
    - 20260722113426039\_1.csv
    - 20260722113426039\_2.csv

..etc

Additionally - Ther’es no&nbsp;documentation on the “Advanced” features of the S3 destination other than “you probably won’t need it” -- not a good look.

Sync version 26.2.9669.0, S3 driver version&nbsp;25.0.9539.0