diff --git a/CHANGELOG.md b/CHANGELOG.md
index c4d7204..b26505e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
+## Version 0.3.2 - 2023-10-11
+
+### Fixed
+
+- If the request has no tenant (e.g., Unauthorized), the audit log shall be sent to the provider account
+
 ## Version 0.3.1 - 2023-09-25
 
 ### Fixed
diff --git a/package.json b/package.json
index 85919d3..10ed0ad 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cap-js/audit-logging",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "description": "CDS plugin providing integration to the SAP Audit Log service as well as out-of-the-box personal data-related audit logging based on annotations.",
   "repository": "cap-js/audit-logging",
   "author": "SAP SE (https://www.sap.com)",
diff --git a/srv/log2restv2.js b/srv/log2restv2.js
index 6aaec02..57d9874 100644
--- a/srv/log2restv2.js
+++ b/srv/log2restv2.js
@@ -69,6 +69,7 @@ module.exports = class AuditLog2RESTv2 extends AuditLogService {
       setTimeout(() => tokens.delete(tenant), (expires_in - 60) * 1000)
       return access_token
     } catch (err) {
+      LOG._trace && LOG.trace('error during token fetch:', err)
       // 401 could also mean x-zid is not valid
       if (String(err.response?.statusCode).match(/^4\d\d$/)) err.unrecoverable = true
       throw err
@@ -76,25 +77,30 @@ module.exports = class AuditLog2RESTv2 extends AuditLogService {
   }
 
   async _send(data, path) {
-    let url
     const headers = { 'content-type': 'application/json' }
-    // TODO: what are these for?
     if (this._vcap) {
       headers.XS_AUDIT_ORG = this._vcap.organization_name
       headers.XS_AUDIT_SPACE = this._vcap.space_name
       headers.XS_AUDIT_APP = this._vcap.application_name
     }
+    let url
     if (this._oauth2) {
       url = this.options.credentials.url + PATHS.OAUTH2[path]
+      data.tenant ??= this._providerTenant //> if request has no tenant, stay in provider account
       headers.authorization = 'Bearer ' + (await this._getToken(data.tenant))
       data.tenant = data.tenant === this._providerTenant ? '$PROVIDER' : '$SUBSCRIBER'
     } else {
       url = this.options.credentials.url + PATHS.STANDARD[path]
       headers.authorization = this._auth
     }
+    if (LOG._debug) {
+      const _headers = Object.assign({}, headers, { authorization: headers.authorization.split(' ')[0] + ' ***' })
+      LOG.debug(`sending audit log to ${url} with tenant "${data.tenant}", user "${data.user}", and headers`, _headers)
+    }
     try {
       await _post(url, data, headers)
     } catch (err) {
+      LOG._trace && LOG.trace('error during log send:', err)
       // 429 (rate limit) is not unrecoverable
       if (String(err.response?.statusCode).match(/^4\d\d$/) && err.response?.statusCode !== 429)
         err.unrecoverable = true
diff --git a/test/api/api.test.js b/test/api/api.test.js
index 92a69c0..cc2578b 100644
--- a/test/api/api.test.js
+++ b/test/api/api.test.js
@@ -1,6 +1,12 @@
 const cds = require('@sap/cds')
 
-const { POST, GET } = cds.test(__dirname)
+const { POST, GET } = cds.test().in(__dirname)
+
+cds.env.requires['audit-log'] = {
+  kind: 'audit-log-to-console',
+  impl: '../../srv/log2console',
+  outbox: true
+}
 
 const wait = require('util').promisify(setTimeout)
 
diff --git a/test/api/custom.test.js b/test/api/custom.test.js
index c06ea09..6909297 100644
--- a/test/api/custom.test.js
+++ b/test/api/custom.test.js
@@ -1,12 +1,12 @@
 const cds = require('@sap/cds')
 
+// set cwd for resolving impl
+cds.test().in(__dirname)
+
 cds.env.requires['audit-log'] = {
   impl: 'MyAuditLogService.js'
 }
 
-// set cwd for resolving impl
-cds.test(__dirname)
-
 describe('Custom Implementation', () => {
   let __log, _logs
   const _log = (...args) => {
diff --git a/test/api/package.json b/test/api/package.json
deleted file mode 100644
index ecbadb4..0000000
--- a/test/api/package.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-  "name": "api",
-  "version": "1.0.0",
-  "description": "A simple CAP project.",
-  "repository": "<Add your repository here>",
-  "license": "UNLICENSED",
-  "private": true,
-  "cds": {
-    "plugins": [
-      "../../cds-plugin"
-    ],
-    "requires": {
-      "audit-log": {
-        "[test]": {
-          "kind": "audit-log-to-console",
-          "impl": "../../srv/log2console",
-          "outbox": true
-        }
-      }
-    }
-  }
-}
diff --git a/test/integration/oauth2.test.js b/test/integration/oauth2.test.js
index 5584e32..d29e635 100644
--- a/test/integration/oauth2.test.js
+++ b/test/integration/oauth2.test.js
@@ -1,11 +1,16 @@
 const cds = require('@sap/cds')
 
+const { POST } = cds.test().in(__dirname)
+const log = cds.test.log()
+
 cds.env.requires['audit-log'] = {
   kind: 'audit-log-to-restv2',
   impl: '../../srv/log2restv2',
   credentials: process.env.ALS_CREDS_OAUTH2 && JSON.parse(process.env.ALS_CREDS_OAUTH2)
 }
 
+cds.env.log.levels['audit-log'] = 'debug'
+
 // stay in provider account (i.e., use "$PROVIDER" and avoid x-zid header when fetching oauth2 token)
 cds.env.requires.auth.users.alice.tenant = cds.env.requires['audit-log'].credentials.uaa.tenantid
 
@@ -16,5 +21,12 @@ describe('Log to Audit Log Service with oauth2 plan', () => {
   // required for tests to exit correctly (cf. token expiration timeouts)
   jest.useFakeTimers()
 
-  require('./tests')
+  require('./tests')(POST)
+
+  test('no tenant is handled correctly', async () => {
+    const data = JSON.stringify({ data: { foo: 'bar' } })
+    const res = await POST('/integration/passthrough', { event: 'SecurityEvent', data })
+    expect(res).toMatchObject({ status: 204 })
+    expect(log.output.match(/\$PROVIDER/)).toBeTruthy()
+  })
 })
diff --git a/test/integration/package.json b/test/integration/package.json
deleted file mode 100644
index 82892c6..0000000
--- a/test/integration/package.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "name": "integration",
-  "version": "1.0.0",
-  "description": "A simple CAP project.",
-  "repository": "<Add your repository here>",
-  "license": "UNLICENSED",
-  "private": true,
-  "cds": {
-    "plugins": [
-      "../../cds-plugin"
-    ]
-  }
-}
diff --git a/test/integration/standard.test.js b/test/integration/standard.test.js
index f30761a..163c8ac 100644
--- a/test/integration/standard.test.js
+++ b/test/integration/standard.test.js
@@ -1,5 +1,7 @@
 const cds = require('@sap/cds')
 
+const { POST } = cds.test().in(__dirname)
+
 cds.env.requires['audit-log'] = {
   kind: 'audit-log-to-restv2',
   impl: '../../srv/log2restv2',
@@ -10,5 +12,5 @@ describe('Log to Audit Log Service with standard plan', () => {
   if (!cds.env.requires['audit-log'].credentials)
     return test.skip('Skipping tests due to missing credentials', () => {})
 
-  require('./tests')
+  require('./tests')(POST)
 })
diff --git a/test/integration/tests.js b/test/integration/tests.js
index 0ce92c3..fd75436 100644
--- a/test/integration/tests.js
+++ b/test/integration/tests.js
@@ -1,63 +1,61 @@
-const cds = require('@sap/cds')
-
-const { POST } = cds.test(__dirname)
-
-const object = { type: 'foo.bar', id: { foo: 'bar' } }
-const data_subject = Object.assign({ role: 'foo.bar' }, object)
-const create_attributes = [{ name: 'foo', new: 'baz' }]
-const update_attributes = [{ name: 'foo', old: 'bar', new: 'baz' }]
-const delete_attributes = [{ name: 'foo', old: 'bar' }]
-
-const ALICE = { username: 'alice', password: 'password' }
-
-test('sensitive data read', async () => {
-  const data = JSON.stringify({ object, data_subject, attributes: [{ name: 'foo' }] })
-  const res = await POST('/integration/passthrough', { event: 'SensitiveDataRead', data }, { auth: ALICE })
-  expect(res).toMatchObject({ status: 204 })
-})
-
-describe('personal data modified', () => {
-  test('create', async () => {
-    const data = JSON.stringify({ object, data_subject, attributes: create_attributes })
-    const res = await POST('/integration/passthrough', { event: 'PersonalDataModified', data }, { auth: ALICE })
-    expect(res).toMatchObject({ status: 204 })
-  })
-
-  test('update', async () => {
-    const data = JSON.stringify({ object, data_subject, attributes: update_attributes })
-    const res = await POST('/integration/passthrough', { event: 'PersonalDataModified', data }, { auth: ALICE })
+module.exports = POST => {
+  const object = { type: 'foo.bar', id: { foo: 'bar' } }
+  const data_subject = Object.assign({ role: 'foo.bar' }, object)
+  const create_attributes = [{ name: 'foo', new: 'baz' }]
+  const update_attributes = [{ name: 'foo', old: 'bar', new: 'baz' }]
+  const delete_attributes = [{ name: 'foo', old: 'bar' }]
+
+  const ALICE = { username: 'alice', password: 'password' }
+
+  test('sensitive data read', async () => {
+    const data = JSON.stringify({ object, data_subject, attributes: [{ name: 'foo' }] })
+    const res = await POST('/integration/passthrough', { event: 'SensitiveDataRead', data }, { auth: ALICE })
     expect(res).toMatchObject({ status: 204 })
   })
 
-  test('delete', async () => {
-    const data = JSON.stringify({ object, data_subject, attributes: delete_attributes })
-    const res = await POST('/integration/passthrough', { event: 'PersonalDataModified', data }, { auth: ALICE })
-    expect(res).toMatchObject({ status: 204 })
+  describe('personal data modified', () => {
+    test('create', async () => {
+      const data = JSON.stringify({ object, data_subject, attributes: create_attributes })
+      const res = await POST('/integration/passthrough', { event: 'PersonalDataModified', data }, { auth: ALICE })
+      expect(res).toMatchObject({ status: 204 })
+    })
+
+    test('update', async () => {
+      const data = JSON.stringify({ object, data_subject, attributes: update_attributes })
+      const res = await POST('/integration/passthrough', { event: 'PersonalDataModified', data }, { auth: ALICE })
+      expect(res).toMatchObject({ status: 204 })
+    })
+
+    test('delete', async () => {
+      const data = JSON.stringify({ object, data_subject, attributes: delete_attributes })
+      const res = await POST('/integration/passthrough', { event: 'PersonalDataModified', data }, { auth: ALICE })
+      expect(res).toMatchObject({ status: 204 })
+    })
   })
-})
 
-describe('configuration modified', () => {
-  test('create', async () => {
-    const data = JSON.stringify({ object, attributes: create_attributes })
-    const res = await POST('/integration/passthrough', { event: 'ConfigurationModified', data }, { auth: ALICE })
-    expect(res).toMatchObject({ status: 204 })
+  describe('configuration modified', () => {
+    test('create', async () => {
+      const data = JSON.stringify({ object, attributes: create_attributes })
+      const res = await POST('/integration/passthrough', { event: 'ConfigurationModified', data }, { auth: ALICE })
+      expect(res).toMatchObject({ status: 204 })
+    })
+
+    test('update', async () => {
+      const data = JSON.stringify({ object, attributes: update_attributes })
+      const res = await POST('/integration/passthrough', { event: 'ConfigurationModified', data }, { auth: ALICE })
+      expect(res).toMatchObject({ status: 204 })
+    })
+
+    test('delete', async () => {
+      const data = JSON.stringify({ object, attributes: delete_attributes })
+      const res = await POST('/integration/passthrough', { event: 'ConfigurationModified', data }, { auth: ALICE })
+      expect(res).toMatchObject({ status: 204 })
+    })
   })
 
-  test('update', async () => {
-    const data = JSON.stringify({ object, attributes: update_attributes })
-    const res = await POST('/integration/passthrough', { event: 'ConfigurationModified', data }, { auth: ALICE })
+  test('security event', async () => {
+    const data = JSON.stringify({ data: { foo: 'bar' } })
+    const res = await POST('/integration/passthrough', { event: 'SecurityEvent', data }, { auth: ALICE })
     expect(res).toMatchObject({ status: 204 })
   })
-
-  test('delete', async () => {
-    const data = JSON.stringify({ object, attributes: delete_attributes })
-    const res = await POST('/integration/passthrough', { event: 'ConfigurationModified', data }, { auth: ALICE })
-    expect(res).toMatchObject({ status: 204 })
-  })
-})
-
-test('security event', async () => {
-  const data = JSON.stringify({ data: { foo: 'bar' } })
-  const res = await POST('/integration/passthrough', { event: 'SecurityEvent', data }, { auth: ALICE })
-  expect(res).toMatchObject({ status: 204 })
-})
+}
diff --git a/test/personal-data/crud.test.js b/test/personal-data/crud.test.js
index 0b711d1..47aeddb 100644
--- a/test/personal-data/crud.test.js
+++ b/test/personal-data/crud.test.js
@@ -1,5 +1,11 @@
 const cds = require('@sap/cds')
 
+const { POST, PATCH, GET, DELETE, data } = cds.test().in(__dirname)
+
+cds.env.plugins['@cap-js/audit-logging'] = {
+  impl: require('path').join(__dirname, '../../cds-plugin.js')
+}
+
 cds.env.requires['audit-log'] = {
   kind: 'audit-log-to-console',
   impl: '../../srv/log2console',
@@ -13,8 +19,6 @@ cds.env.requires['audit-log'] = {
 const _logger = require('../utils/logger')({ debug: true })
 cds.log.Logger = _logger
 
-const { POST, PATCH, GET, DELETE, data } = cds.test(__dirname)
-
 describe('personal data audit logging in CRUD', () => {
   let __log, _logs
   const _log = (...args) => {
diff --git a/test/personal-data/fiori.test.js b/test/personal-data/fiori.test.js
index 8dbde79..27c6800 100644
--- a/test/personal-data/fiori.test.js
+++ b/test/personal-data/fiori.test.js
@@ -1,5 +1,11 @@
 const cds = require('@sap/cds')
 
+const { POST, PATCH, GET, DELETE, data } = cds.test().in(__dirname)
+
+cds.env.plugins['@cap-js/audit-logging'] = {
+  impl: require('path').join(__dirname, '../../cds-plugin.js')
+}
+
 cds.env.requires['audit-log'] = {
   kind: 'audit-log-to-console',
   impl: '../../srv/log2console',
@@ -9,8 +15,6 @@ cds.env.requires['audit-log'] = {
 const _logger = require('../utils/logger')({ debug: true })
 cds.log.Logger = _logger
 
-const { POST, PATCH, GET, DELETE, data } = cds.test(__dirname)
-
 describe('personal data audit logging in Fiori', () => {
   let __log, _logs
   const _log = (...args) => {
diff --git a/test/personal-data/handle.test.js b/test/personal-data/handle.test.js
index 16ca34a..a9b1306 100644
--- a/test/personal-data/handle.test.js
+++ b/test/personal-data/handle.test.js
@@ -1,13 +1,17 @@
 const cds = require('@sap/cds')
 
+const { GET } = cds.test().in(__dirname)
+
+cds.env.plugins['@cap-js/audit-logging'] = {
+  impl: require('path').join(__dirname, '../../cds-plugin.js')
+}
+
 cds.env.requires['audit-log'] = {
   kind: 'audit-log-to-console',
   impl: '../../srv/log2console',
   handle: ['WRITE']
 }
 
-const { GET } = cds.test(__dirname)
-
 describe('handle', () => {
   let __log, _logs
   const _log = (...args) => {
diff --git a/test/personal-data/package.json b/test/personal-data/package.json
deleted file mode 100644
index 04af3bf..0000000
--- a/test/personal-data/package.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "name": "personal-data",
-  "version": "1.0.0",
-  "description": "A simple CAP project.",
-  "repository": "<Add your repository here>",
-  "license": "UNLICENSED",
-  "private": true,
-  "cds": {
-    "plugins": [
-      "../../cds-plugin"
-    ]
-  }
-}