Update an employee's fields by submitting a JSON object or XML document containing field name/value pairs. The request body schema lists commonly used fields, but any valid writable employee field name may be used as a key. To discover available field names, call the List Fields endpoint (operationId: list-fields, GET /api/v1/meta/fields).

This endpoint does not upload, replace, or remove the employee profile photo, and does not accept any binary or file uploads in general. Photo-related keys (e.g. photo, photoUrl) included in the body are silently ignored: the request still returns 200, but no photo change is made. To change a photo, use the Upload Employee Photo endpoint (operationId: upload-employee-photo, POST /api/v1/employees/{employeeId}/photo).

Trax Payroll note: If the employee is currently on a pay schedule syncing with Trax Payroll, or is being added to one, the request must include the required payroll-related employee fields: employeeNumber (unless the company has automatic employee numbers enabled), firstName, lastName, dateOfBirth, ssn or ein, gender, maritalStatus, hireDate, address1, city, state, zipcode, country, employmentHistoryStatus, exempt, payType, payRate, payPer, overtimeRate, and location.