Sales & qualification · C3 Funnel & lifecycle

SDR / BDR

Also: Sales/Business Development Representative, xDR

Definition. Entry-level sales role focused on finding and qualifying new prospects and booking meetings to feed AEs. SDR often = inbound; BDR often = outbound (usage varies).
Established Last updated 2026-06-18

Related terms

Where this sits

Part of the Sales & qualification set within the GTM World Model — cluster C3, Funnel & lifecycle.

How to cite this

@misc{shalvi_gtm_sdr_bdr,
  author = {Singh, Shalvi},
  title  = {SDR / BDR — GTM World Model Glossary},
  year   = {2026},
  url     = {https://shalvisingh.com/gtm/glossary/sdr-bdr}
}

Singh, Shalvi. "SDR / BDR — GTM World Model Glossary." shalvisingh.com, 2026. https://shalvisingh.com/gtm/glossary/sdr-bdr