> For the complete documentation index, see [llms.txt](https://help.openletterconnect.com/olc-help-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.openletterconnect.com/olc-help-docs/product-and-order-guide/sender-fields-and-sender-profiles.md).

# Sender Fields & Sender Profiles

- [What Are Sender Fields?](https://help.openletterconnect.com/olc-help-docs/product-and-order-guide/sender-fields-and-sender-profiles/what-are-sender-fields.md)
- [How to Add a Sender Profile](https://help.openletterconnect.com/olc-help-docs/product-and-order-guide/sender-fields-and-sender-profiles/how-to-add-a-sender-profile.md)
- [What Happens After You Add a Sender Profile](https://help.openletterconnect.com/olc-help-docs/product-and-order-guide/sender-fields-and-sender-profiles/what-happens-after-you-add-a-sender-profile.md)
- [How the Merge Works](https://help.openletterconnect.com/olc-help-docs/product-and-order-guide/sender-fields-and-sender-profiles/how-the-merge-works.md)