> For the complete documentation index, see [llms.txt](https://docs.dstillery.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dstillery.com/ds-1-foundations/core-use-cases/build-and-activate-to-a-dsp-or-ssp.md).
# Build and activate to a DSP or SSP
Finding an audience idea is easy. Turning it into a campaign-ready audience is harder.
DS-1 carries your research through to activation. Layer signals into one compound audience. Then send it directly to the platform where you buy.
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#### :lightbulb: Start with a signal
Begin with the research you already trust. Use a segment, search terms, product signals, or a domain.
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#### :layer-group: Build the audience
Combine your inputs into a compound audience. Each layer adds relevant context and precision.
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#### :arrow-up-right-dots: Activate it
Send the finished audience to any DSP or SSP. It arrives ready to target.
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### From research to reach
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#### Bring in your starting point
Use any valid audience signal. You do not need a perfect brief.
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#### Add the signals that matter
Layer the attributes that define your campaign. DS-1 turns them into a richer audience than any single segment.
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#### Push it live where you buy
Activate directly to your DSP or SSP. There are no exports, handoffs, or manual pushes.
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### The workflow in DS-1
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**The result:** your audience moves from idea to activated campaign without leaving DS-1.
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