It starts with your subject line.
Why?
Because most subject lines:
→ Look like every other pitch in the inbox
→ Reveal the offer too early
→ Fail to spark any curiosity
We’ve seen one tiny shift flip results overnight.
The strongest subject lines are:
Short 3–5 words max
Centered on the reader’s world
Written to tease, not to sell
Get the subject line right, and your email gets a shot.
Miss it, and it’s gone before a glance.
Cold email isn’t about volume it’s precision.
If opens are low, start with your subject line.
It’s the smallest fix with the biggest payoff.
Yes, a single Clay subscription can connect multiple CRMs so they can add the second CRM to the same workspace without needing a separate subscription.
Clay Smartlead integration doesn’t always handle Remove Lead From Campaign reliably as a workaround, remove leads directly in Smartlead or via their API instead of relying on the Clay action.
Clay formulas don’t support or to select all columns automatically you’ll need to manually combine each column with proper escaping in a formula or use an LLM enrichment to build the JSON string.
That error means Clay can’t reach your app’s API check the domain for typos, ensure it’s publicly accessible and verify there are no firewall or DNS issues blocking Clay.
Clay keeps the original table rows; to update domains, enrich the same table again and map the results back to the existing rows instead of creating new ones.
Clay limits imports to 50 leads per pull on free plans, so you’ll need to run the import multiple times, each with the next 50 leads from Sales Navigator.