What Is a Company Identifier?
A company identifier is a stable value that points to exactly one company record, such as a numeric ID, a profile URL or a username. Unlike a name, it does not change when a company rebrands or share a value with another company.
What counts as a company identifier
Good identifiers are assigned once and never reused. A numeric ID is the strongest. A company profile URL or a username also works as long as you treat it as a lookup key and store the ID that comes back. A company name is not an identifier, because many companies share names and one company can go by several.
Why a domain is a weak identifier
A domain looks unique, but it is not. A parent company and its subsidiaries can share one, a company can change its domain after a rebrand, and some companies run mail on a domain that differs from their website. Matching on a domain alone quietly attaches records to the wrong company.
How it works in the Kooperativa API
The company endpoint accepts a numeric company_id, a company profile URL, a username or an internal id, and the company endpoints that follow, such as headcount by seniority and current employees, all key off the same company_id. Store that ID with the account in your CRM and every later call lands on the same company.