Getting Shopify webhook to work with sanity but the function in the Netlify environment catches an error.

client
      .transaction()
      .createIfNotExists(product)
      .patch(data.id.toString(), patch => patch.set(product))
      .commit()

Sanity error 4: ClientError: The mutation(s) failed: mutation failed on document "788032119674292900": Insufficient permissions; permission "create" required
    at onResponse (/var/task/src/node_modules/@sanity/client/lib/http/request.js:27:13)
    at /var/task/src/node_modules/get-it/lib-node/util/middlewareReducer.js:10:22
    at Array.reduce (<anonymous>)
    at applyMiddleware (/var/task/src/node_modules/get-it/lib-node/util/middlewareReducer.js:9:29)
    at onResponse (/var/task/src/node_modules/get-it/lib-node/index.js:81:22)
    at /var/task/src/node_modules/get-it/lib-node/index.js:48:55
    at callback (/var/task/src/node_modules/get-it/lib-node/request/node-request.js:57:46)
    at /var/task/src/node_modules/get-it/lib-node/request/node-request.js:141:14
    at DestroyableTransform.<anonymous> (/var/task/src/node_modules/simple-concat/index.js:7:13)
    at Object.onceWrapper (events.js:420:28) {
  response: {
    body: { error: [Object] },
    url: '***************************************',
    method: 'POST',
    headers: {
      'content-type': 'application/json; charset=utf-8',
      'content-length': '349',
      'x-sanity-shard': '*********************',
      'x-served-by': '*************',
      date: '********************',
      vary: 'Origin',
      xkey: 'project-************, project-******************',
      via: '1.1 google',
      'alt-svc': 'clear',
      connection: 'close'
    },
    statusCode: 403,
    statusMessage: 'Forbidden'
  }