curl --request DELETE \
  --url https://{your-subdomain}.neetoform.com/api/external/v2/forms/{form_id}/submissions/bulk_destroy \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <x-api-key>' \
  --data '
{
  "ids": [
    "2c7f4a1e-6a0b-4d7e-9c55-1b3c9f0d8e21",
    "5d1b7c3a-0e4f-4a8b-8f12-7a6c2e9b4d10"
  ]
}
'

const options = {
  method: 'DELETE',
  headers: {'X-Api-Key': '<x-api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    ids: ['2c7f4a1e-6a0b-4d7e-9c55-1b3c9f0d8e21', '5d1b7c3a-0e4f-4a8b-8f12-7a6c2e9b4d10']
  })
};

fetch('https://{your-subdomain}.neetoform.com/api/external/v2/forms/{form_id}/submissions/bulk_destroy', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{your-subdomain}.neetoform.com/api/external/v2/forms/{form_id}/submissions/bulk_destroy"

payload = { "ids": ["2c7f4a1e-6a0b-4d7e-9c55-1b3c9f0d8e21", "5d1b7c3a-0e4f-4a8b-8f12-7a6c2e9b4d10"] }
headers = {
    "X-Api-Key": "<x-api-key>",
    "Content-Type": "application/json"
}

response = requests.delete(url, json=payload, headers=headers)

print(response.text)

{
  "trashed_count": 123
}

{
  "error": "Form does not exist."
}