Slim Folderen + Copper

Send physical mail straight from Copper

Automate your offline marketing. Connect Copper to Slim Folderen and send direct mail, letters and personalised brochures as easily as an email.

A trigger in Copper creates a send request. You set budget limits and can approve every request first, so nothing goes out without your say.

Physical mail stands out. Reach your Copper contacts with tangible mailings that never end up in a spam folder.

A webhook from Copper is all it takes. We take care of high-quality printing, packing and fast delivery by PostNL.

How does the Copper integration work?

Via automation or Zapier. Follow these simple steps to connect Copper to your Slim Folderen account.

Copper → Automations → trigger on a person or opportunity. Webhook action with POST to your URL.

Some Copper webhooks only send an ID. Make sure the full person details are in the payload, or use Zapier as an intermediate step.