Review and implement the instructions in How to build a Toast integration.

Employees have permissions based on their assigned job(s). Scheduled shifts must specify an employee and a job. See this Toast Central article for more information about employee setup.

If you plan to maintain employee information in your platform and submit this information to Toast, see Building an employee management integration.

If a restaurant begins using your integration after they are already live on the Toast platform, you will need to map the existing employees and jobs in the Toast platform to employees and jobs in your service.

Consider doing an initial employee load when a restaurant first connects to your platform. You can match employees based on identifying information such as names and email addresses. If you will use the externalEmployeeId field, you can also use this field for mapping employees in the Toast platform to employees in your service.

Use the /jobs endpoint of the labor API to load initial job information. See the Labor API for the jobs endpoint specification.

If you attempt to submit a shift that contains an archived employee or job, or that contains an incorrect combination of an employee and job, the Toast API rejects the submission with a 400 HTTP response status code.

It is critical that you retrieve employee and shift information from the Toast platform on a recurring basis, for example once per day, to ensure that users are able to submit shifts that contain correct and current information.

Use the Schedule object in the restaurants API to retrieve a restaurant location's opening and closing hours. Use these hours when determining when a day's shifts should begin and end.

Consider adding configuration in your service that allows restaurant administrators to decide how long before opening the first shift must begin and how long after close the last shift must end.

Build functionality that lets restaurant administrators create a scheduled shift in your service and submit this shift to the Toast platform.

See Adding a shift and assigning it to an employee for more information.

After building functionality for initial shift submission, build and test functionality in which users can update and cancel existing shifts.

When a user wants to update an existing shift, submit a PUT request to the /shifts endpoint of the labor API. When a user wants to cancel their shift, use the DELETE method.

If you attempt to make two updates to the same shift at the same time (such as updating the start time through one PUT request and the end time in a different PUT request), one of the requests may receive a 400 HTTP response status code, and the update will not be reflected in the Toast platform.

To avoid this problem, either batch the changes to the shift into a single request, or wait for a response from the Toast API between changes to a single shift.

If you attempt to create a shift that has the same start time, end time, employee, and job as an existing shift, you will receive a 400 HTTP response status code.

Your service should track the shifts you have already created so you do not receive errors by attempting to create duplicate shifts.

If an employee is clocked into a shift, you will receive a 400 HTTP response status code if you attempt to delete the shift.

To evaluate whether an employee has clocked into their shift, retrieve time entries at this location and look for the shift's GUID in the shiftReference value. If there is a time entry that contains this shift in the shiftReference, the employee has clocked in.

Your integration should prevent users from attempting to delete shifts that employees have clocked into or display a user-friendly error message when somebody makes this shift deletion attempt.