Docs: Source Google Ads docs update (#28833)

* update token request step

* add instructions for OAuth credentials

* additional context

* add setup steps from main to inapp

* update duplication comment

* minor changes to inapp setup

* clarify manager account Customer ID field

* update prerequisites

* truncat inapp setup steps

* last couple edits

* update note on conversion windows

docs/integrations/sources/google-ads.inapp.md

@@ -1,17 +1,50 @@
 ## Prerequisites
 
-- A [Google Ads Account](https://support.google.com/google-ads/answer/6366720) [linked](https://support.google.com/google-ads/answer/7459601) to a [Google Ads Manager account](https://ads.google.com/home/tools/manager-accounts/)
+- A [Google Ads Account](https://support.google.com/google-ads/answer/6366720) [linked](https://support.google.com/google-ads/answer/7459601) to a Google Ads Manager account
+<!-- env:oss -->
+- (For Airbyte Open Source):
+  - A Developer Token
+  - OAuth credentials to authenticate your Google account
+<!-- /env:oss -->
 
 ## Setup guide
-1. Enter a **Name** for your source.
-2. Click **Sign in with Google** to authenticate your Google Ads account.
-3. Enter a comma-separated list of the [Customer ID(s)](https://support.google.com/google-ads/answer/1704344) for your account.
-4. Enter the **Start Date** in YYYY-MM-DD format. The data added on and after this date will be replicated. If this field is blank, Airbyte will replicate all data.
-5. (Optional) Enter a custom [GAQL](#custom-query-understanding-google-ads-query-language) query.
-6. (Optional) If the access to your account is through a [Google Ads Manager account](https://ads.google.com/home/tools/manager-accounts/), enter the [**Login Customer ID for Managed Accounts**](https://developers.google.com/google-ads/api/docs/concepts/call-structure#cid) of the Google Ads Manager account.
-7. (Optional) Enter a [**Conversion Window**](https://support.google.com/google-ads/answer/3123169?hl=en).
-8. (Optional) Enter the **End Date** in YYYY-MM-DD format. The data added after this date will not be replicated.
-9. Click **Set up source**.
+
+<!-- env:oss -->
+
+To set up the Google Ads source connector with Airbyte Open Source, you will first need to obtain a developer token, as well as credentials for OAuth authentication. For more information on the steps involved, please refer to our [full documentation](https://docs.airbyte.com/integrations/sources/google-ads#setup-guide).
+
+<!-- /env:oss -->
+<!-- env:cloud -->
+
+### For Airbyte Cloud:
+
+1. Enter a **Source name** of your choosing.
+2. Click **Sign in with Google** to authenticate your Google Ads account. In the pop-up, select the appropriate Google account and click **Continue** to proceed.
+3. Enter a comma-separated list of the **Customer ID(s)** for your account. These IDs are 10-digit numbers that uniquely identify your account. To find your Customer ID, please follow [Google's instructions](https://support.google.com/google-ads/answer/1704344).
+4. Enter a **Start Date** using the provided datepicker, or by programmatically entering the date in YYYY-MM-DD format. The data added on and after this date will be replicated.
+5. (Optional) You can use the **Custom GAQL Queries** field to enter a custom query using Google Ads Query Language. Click **Add** and enter your query, as well as the desired name of the table for this data in the destination. Multiple queries can be provided. For more information on formulating these queries, refer to our [guide below](#custom-query-understanding-google-ads-query-language).
+6. (Required for Manager accounts) If accessing your account through a Google Ads Manager account, you must enter the [**Customer ID**](https://developers.google.com/google-ads/api/docs/concepts/call-structure#cid) of the Manager account.
+7. (Optional) Enter a **Conversion Window**. This is the number of days after an ad interaction during which a conversion is recorded in Google Ads. For more information on this topic, refer to the [Google Ads Help Center](https://support.google.com/google-ads/answer/3123169?hl=en).  This field defaults to 14 days.
+8. (Optional) Enter an **End Date** in YYYY-MM-DD format. Any data added after this date will not be replicated. Leaving this field blank will replicate all data from the start date onward.
+9. Click **Set up source** and wait for the tests to complete.
+<!-- /env:cloud -->
+
+<!-- env:oss -->
+
+### For Airbyte Open Source:
+
+1. Enter a **Source name** of your choosing.
+2. Enter the **Developer Token** you obtained from Google.
+3. To authenticate your Google account, enter your Google application's **Client ID**, **Client Secret**, **Refresh Token**, and optionally, the **Access Token**.
+4. Enter a comma-separated list of the **Customer ID(s)** for your account. These IDs are 10-digit numbers that uniquely identify your account. To find your Customer ID, please follow [Google's instructions](https://support.google.com/google-ads/answer/1704344).
+5. Enter a **Start Date** using the provided datepicker, or by programmatically entering the date in YYYY-MM-DD format. The data added on and after this date will be replicated.
+6. (Optional) You can use the **Custom GAQL Queries** field to enter a custom query using Google Ads Query Language. Click **Add** and enter your query, as well as the desired name of the table for this data in the destination. Multiple queries can be provided. For more information on formulating these queries, refer to our [guide below](#custom-query-understanding-google-ads-query-language).
+7. (Required for Manager accounts) If accessing your account through a Google Ads Manager account, you must enter the [**Customer ID**](https://developers.google.com/google-ads/api/docs/concepts/call-structure#cid) of the Manager account.
+8. (Optional) Enter a **Conversion Window**. This is the number of days after an ad interaction during which a conversion is recorded in Google Ads. For more information on this topic, refer to the [Google Ads Help Center](https://support.google.com/google-ads/answer/3123169?hl=en). This field defaults to 14 days.
+9. (Optional) Enter an **End Date** in YYYY-MM-DD format. Any data added after this date will not be replicated. Leaving this field blank will replicate all data from the start date onward.
+10. Click **Set up source** and wait for the tests to complete.
+
+<!-- /env:oss -->
 
 ## Custom Query: Understanding Google Ads Query Language
 Additional streams for Google Ads can be dynamically created using custom queries. 
@@ -36,4 +69,4 @@ Follow Google's guidance on [Selectability between segments and metrics](https:/
 For an existing Google Ads source, when you are updating or removing Custom GAQL Queries, you should also subsequently refresh your source schema to pull in any changes.
 :::
 
-For detailed information on supported sync modes, supported streams, performance considerations, refer to the full documentation for [Google Ads](https://docs.airbyte.com/integrations/sources/google-ads/).
+For detailed information on supported sync modes, supported streams, performance considerations, refer to the [full documentation for Google Ads](https://docs.airbyte.com/integrations/sources/google-ads/).