> For the complete documentation index, see [llms.txt](https://docs.cymbal.co/help/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cymbal.co/help/contacts/uploading-unsubscribed-contacts.md).
# Uploading unsubscribed contacts
When first onboarding to Cymbal from another provider, we highly recommend uploading a list of your existing unsubscribed contacts to ensure compliance with [CAN-SPAM](https://www.ftc.gov/business-guidance/resources/can-spam-act-compliance-guide-business) and [TCPA](https://www.fcc.gov/sites/default/files/tcpa-rules.pdf) requirements.
**Steps to Upload Unsubscribed Contacts**
1. Go to [**Audience**](https://manager.cymbal.co/audience) tab
2. Click **Add contacts** (top right)
3. Select **Upload CSV**
4. Upload your file by either:
* Clicking **Choose a file**, or
* Dragging and dropping your file onto the screen
5. **Unsubscribe everyone** – marks all as unsubscribed.
6. Map your CSV fields to **Cymbal attributes**:
* Left column = your CSV column names.
* Middle = assign each to the correct Cymbal field (e.g., email, phone, first name, last name).
* Right column = preview of your CSV data for accuracy. Click **Continue**.
7. Cymbal will process your CSV (this may take a few minutes). Your **audience size** will update once complete.
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