diff --git a/config/Config.js b/config/Config.js
index 8283341..25a97ad 100644
--- a/config/Config.js
+++ b/config/Config.js
@@ -13,6 +13,7 @@ class Config {
       CLIENT_ID_ENV: 'CLIENT_ID',
       PASSWORD_ENV: 'PASSWORD',
       USER_KEY_ENV: 'USER_KEY',
+      SERVICE_ACCOUNT_ID_ENV: 'SERVICE_ACCOUNT_ID',
       SUBSCRIPTION_ID_ENV: 'SUBSCRIPTION_ID',
       EXTRACTION_API_HOST_ENV: 'EXTRACTION_API_HOST',
       EXTRACTION_API_HOST_DEFAULT: 'https://api.dowjones.com',
@@ -56,6 +57,11 @@ class Config {
       }
     }
 
+    // NOTE: "service_account_id" is a legacy, alternate name for "user_key" from the customer's perspective
+    if (!accountCreds.user_key && accountCreds.service_account_id) {
+      accountCreds.user_key = accountCreds.service_account_id;
+    }
+
     return this._areCredsSet(accountCreds) ? accountCreds : new Error(
       'Error: No account credentials specified\n' +
       'Must specify user_id, client_id, and password as args to Listener constructor, env vars, or via customerConfig.json file\n' +
@@ -68,12 +74,13 @@ class Config {
       user_id: process.env[this.Constants.USER_ID_ENV],
       client_id: process.env[this.Constants.CLIENT_ID_ENV],
       password: process.env[this.Constants.PASSWORD_ENV],
-      user_key: process.env[this.Constants.USER_KEY_ENV]
+      user_key: process.env[this.Constants.USER_KEY_ENV],
+      service_account_id: process.env[this.Constants.SERVICE_ACCOUNT_ID_ENV]
     };
   }
 
   _areCredsSet(accountCreds) {
-    return accountCreds && (accountCreds.user_key || (accountCreds.user_id && accountCreds.client_id && accountCreds.password));
+    return accountCreds && (accountCreds.user_key || accountCreds.service_account_id || (accountCreds.user_id && accountCreds.client_id && accountCreds.password));
   }
 }
 
diff --git a/config/ConfigFileUtil.js b/config/ConfigFileUtil.js
index 2f561f2..5bfce5f 100644
--- a/config/ConfigFileUtil.js
+++ b/config/ConfigFileUtil.js
@@ -47,6 +47,7 @@ class ConfigFileUtil {
 
     return {
       user_key: _.trim(this.config.user_key),
+      service_account_id: _.trim(this.config.service_account_id),
       user_id: _.trim(this.config.user_id),
       client_id: _.trim(this.config.client_id),
       password: _.trim(this.config.password)
diff --git a/tests/config/testCustomerConfigServiceAccountId.json b/tests/config/testCustomerConfigServiceAccountId.json
new file mode 100644
index 0000000..ab2b9d6
--- /dev/null
+++ b/tests/config/testCustomerConfigServiceAccountId.json
@@ -0,0 +1,7 @@
+{
+  "service_account_id": "foo",
+  "user_id": "account@account.com",
+  "client_id": "clientID123",
+  "password": "Password123",
+  "subscription_id": "bar"
+}
\ No newline at end of file
diff --git a/tests/configFileUtilTests.js b/tests/configFileUtilTests.js
index b59ce73..7250bf2 100644
--- a/tests/configFileUtilTests.js
+++ b/tests/configFileUtilTests.js
@@ -6,6 +6,7 @@ const path = require('path');
 describe('configFileUtil', () => {
   let sandbox;
   const pathConfig = path.join(__dirname, './config/testCustomerConfig.json');
+  const serviceAccountIdPathConfig = path.join(__dirname, './config/testCustomerConfigServiceAccountId.json');
 
   beforeEach(() => {
     sandbox = sinon.sandbox.create();
@@ -28,6 +29,19 @@ describe('configFileUtil', () => {
     expect(userKey).toBe('foo');
   });
 
+  it('should get the correct customer user key when set with service_account_id param.', () => {
+    // Arrange
+    const configFileUtil = new ConfigFileUtil();
+    configFileUtil.setConfigFilePath(serviceAccountIdPathConfig);
+
+    // Act
+    const creds = configFileUtil.getAccountCredentials();
+    const userKey = creds.service_account_id;
+
+    // Assert
+    expect(userKey).toBe('foo');
+  });
+
   it('should get the correct customer service account credentials.', () => {
     // Arrange
     const configFileUtil = new ConfigFileUtil();
diff --git a/tests/configTests.js b/tests/configTests.js
index 102e41a..31c685c 100644
--- a/tests/configTests.js
+++ b/tests/configTests.js
@@ -49,6 +49,19 @@ describe('config', () => {
     expect(actualUserKey).toBe(expectedUserKey);
   });
 
+  it('should prioritize service_account_id from env over service account creds in config file', () => {
+    // Arrange
+    const expectedUserKey = '123A';
+    process.env[config.Constants.SERVICE_ACCOUNT_ID_ENV] = expectedUserKey;
+
+    // Act
+    const creds = config.getAccountCredentials();
+    const actualUserKey = creds.user_key;
+
+    // Assert
+    expect(actualUserKey).toBe(expectedUserKey);
+  });
+
   it('should prioritize credentials set thru env vars over config file', () => {
     // Arrange
     const expectedUserId = 'userId';
@@ -109,6 +122,20 @@ describe('config', () => {
     expect(accountCreds.user_id).toBe(undefined);
   });
 
+  it('should prioritize service_account_id param over service account credentials in config file', () => {
+    // Arrange
+    const userKeyExpected = '123';
+    const configSpecial = new Config({ service_account_id: userKeyExpected });
+
+    // Act
+    const accountCreds = configSpecial.getAccountCredentials();
+    const userKeyActual = accountCreds.user_key;
+
+    // Assert
+    expect(userKeyExpected).toBe(userKeyActual);
+    expect(accountCreds.user_id).toBe(undefined);
+  });
+
   it('should get the correct subscription ID from config file if no overrides present.', () => {
     // Arrange
     const expectedSub = 'bar';