Is there any way to schedule routine deletions of form submissions?

Unfortunately, it is not possible to auto delete submissions with a schedule that is set.

However, there are a few things you can do.

First, you can use Autodelete Submissions app. This app deletes submissions right after the user submits the form.

Secondly, you can try enabling submission limits in your form which will make your forms automatically disabled after receiving the chosen amount of submissions.

Feel free to contact us again if you have any further questions.