Example sync preview page for an Airtable and Google Sheets sync
When you set up your sync for the first time, you want to know exactly what will happen when you activate your sync... now you can!
With Sync Preview, you get a look into the changes Whalesync will make during the initial sync.
{% hint style="info" %}
Sync Preview is available any time Whalesync is going to kick off an "initial sync".\
\
An initial sync is necessary when:
* you set up a sync for the first time
* you add a new table mapping to a sync
* you change the filters on a sync
{% endhint %}
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# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.whalesync.com/features/additional-features/sync-preview.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
