Will rerunning a table create duplicate companies in HubSpot?

Rerunning Tables in HubSpot

Clay will not create duplicate companies when rerunning a table, provided the same identifiers are used.

How it Works

• Clay matches against existing companies using unique identifiers (such as domain)
• If a company already exists from a previous run, Clay will skip creation and use the existing record instead

When Duplicates Occur

Duplicates are created only when identifiers change between runs:

• Different domains used in separate runs
• Missing domain data on subsequent runs
• Multiple "create company" steps without a match condition applied