diff --git a/docs/01-advanced-configuration.md b/docs/01-advanced-configuration.md
index 9be44ff..58e9305 100644
--- a/docs/01-advanced-configuration.md
+++ b/docs/01-advanced-configuration.md
@@ -54,6 +54,13 @@ const customConfig = {
         },
       },
     ]
+  },
+
+  // add custom params for Smartling
+  customParams: {
+    // GET request that creates a callback to a URL when a file is 100% published for a locale. 
+    //  The callback gives the fileUri and locale with the format http[/s]://your.url?locale=xx-XX&fileUri=your.file. 
+    callbackUrl: 'https://your-endpoint.here'
   }
   //adapter, baseLanguage, secretsNamespace, importTranslation, exportForTranslation should likely not be touched unless you very much want to customize your plugin.
 } satisfies TranslationsTabConfigOptions
diff --git a/src/adapter/createTask.ts b/src/adapter/createTask.ts
index d8039a1..3b2811c 100644
--- a/src/adapter/createTask.ts
+++ b/src/adapter/createTask.ts
@@ -1,5 +1,5 @@
 import {authenticate, getHeaders, findExistingJob} from './helpers'
-import {Adapter, Secrets} from 'sanity-translations-tab'
+import {Adapter, Secrets, CustomParams} from 'sanity-translations-tab'
 import {getTranslationTask} from './getTranslationTask'
 import {Buffer} from 'buffer'
 
@@ -93,6 +93,7 @@ const uploadFileToBatch = (
   secrets: Secrets,
   localeIds: string[],
   accessToken: string,
+  customParams?: CustomParams,
   //eslint-disable-next-line max-params
 ) => {
   const {project, proxy} = secrets
@@ -109,6 +110,10 @@ const uploadFileToBatch = (
   formData.append('file', new Blob([htmlBuffer]), `${document.name}.html`)
   localeIds.forEach((localeId) => formData.append('localeIdsToAuthorize[]', localeId))
 
+  if (customParams?.callbackUrl && typeof customParams?.callbackUrl === 'function') {
+    formData.append('callbackUrl', customParams?.callbackUrl(document))
+  }
+
   return fetch(proxy, {
     method: 'POST',
     headers: getHeaders(url, accessToken),
@@ -122,6 +127,8 @@ export const createTask: Adapter['createTask'] = async (
   localeIds: string[],
   secrets: Secrets | null,
   workflowUid?: string,
+  customParams?: CustomParams,
+  // eslint-disable-next-line max-params
 ) => {
   if (!secrets?.project || !secrets?.secret || !secrets?.proxy) {
     throw new Error(
@@ -151,6 +158,7 @@ export const createTask: Adapter['createTask'] = async (
     secrets,
     localeIds,
     accessToken,
+    customParams,
   )
   //eslint-disable-next-line no-console -- for developer debugging
   console.info('Upload status from Smartling: ', uploadFileRes)
diff --git a/src/adapter/helpers.ts b/src/adapter/helpers.ts
index 24467e8..31b6a29 100644
--- a/src/adapter/helpers.ts
+++ b/src/adapter/helpers.ts
@@ -41,7 +41,7 @@ export const findExistingJob = async (
       'The Smartling adapter requires a Smartling project identifier and a proxy URL. Please check your secrets document in this dataset, per the plugin documentation.',
     )
   }
-  const url = `https://api.smartling.com/jobs-api/v3/projects/${project}/jobs?jobName=${documentId}`
+  const url = `https://api.smartling.com/jobs-api/v3/projects/${project}/jobs`
   //first, try fetching from name resolution
   let items = await fetch(proxy, {
     headers: getHeaders(url, accessToken),