How to Fix Zapier's "File Too Large" Error When Exporting Google Docs
Nothing kills productivity faster than automation failures. When your carefully built Zapier workflow suddenly stops working with "This file is too large to be exported" errors, it can derail entire document workflows. The solution? Bypass Google Docs' limitations by using the more robust Google Drive API instead.
The Hidden Limitation Breaking Your Workflows
Many businesses rely on Zapier's "Create Document from Template" action to generate contracts, proposals, and other standardized documents. When this suddenly fails with "file too large" errors—despite no changes to the template—it reveals Google Docs' undocumented API limitations.
Unlike the user interface where you can manually make copies of large documents, the Google Docs API has strict size limits. These become apparent when:
- Templates exceed ~5MB (often due to embedded images)
- Documents contain complex formatting or many pages
- Your workflow generates multiple copies simultaneously
Key insight: The error message suggests a file size issue, but the real limitation is in Google Docs' API—not your actual document. By switching to Google Drive's more robust API, you can duplicate documents of virtually any size.
The Google Drive API Solution
Google Drive's API handles file operations at the storage level rather than the application level. This means it can duplicate documents that would fail in Google Docs-specific actions. The process involves:
- Using a custom API request action in Zapier
- Targeting the Google Drive API endpoint instead of Google Docs
- Passing the document ID and destination folder
At 2:15 in the video tutorial, you'll see how this approach successfully duplicates a document that previously failed with size errors. The key differences from standard Google Docs actions are:
Endpoint: https://www.googleapis.com/drive/v3/files/[FILE_ID]/copy
Headers: Content-Type: application/json
Body: Simple JSON specifying the new document name and parent folder
Step-by-Step Implementation
Step 1: Set Up Your Google Drive Folder Structure
Create a dedicated folder for duplicated documents to keep your Drive organized. Note the folder ID from its URL (appears after '/folders/').
Step 2: Find Your Template Document ID
Open your template in Google Docs and copy the document ID from the URL (between '/d/' and '/edit').
Step 3: Configure the Zapier Custom API Action
Replace your failing Google Docs action with a new "Custom API Request" step:
- Method: POST
- URL:
https://www.googleapis.com/drive/v3/files/[DOCUMENT_ID]/copy - Headers: Content-Type → application/json
- Body:
{"name":"New Document Name","parents":["FOLDER_ID"]}
Step 4: Test and Deploy
Run a test to verify the duplication works. The response should show status 200, and your new document will appear in the specified folder.
Pro Tip: Use Zapier's formatter to dynamically generate document names based on your workflow data, just like you would with standard Google Docs actions.
Testing and Troubleshooting
When implementing this solution, watch for these common issues:
- Authentication errors: Ensure your Zapier connection uses the same Google account that owns the documents
- Incorrect IDs: Double-check document and folder IDs match exactly what's in the URLs
- JSON formatting: The body must be valid JSON with proper quotes and brackets
At 5:42 in the video, you'll see a successful test where the previously failing document duplicates perfectly through Google Drive's API. The response includes the new document's ID, which you can use in subsequent steps to:
- Populate merge fields
- Share with specific users
- Convert to PDF or other formats
Watch the Full Tutorial
See the complete implementation from start to finish in this 8-minute video tutorial. At 3:15, we demonstrate how to extract document and folder IDs from Google Drive URLs—a crucial step for configuring the API request correctly.
Key Takeaways
When Zapier's Google Docs actions fail due to size limitations, switching to Google Drive's API provides a reliable workaround. This solution:
- Handles documents up to 50MB—far larger than Google Docs API limits
- Preserves all formatting, images, and document structure
- Works with existing dynamic field population workflows
In summary: Google Drive's API offers a more robust way to duplicate large documents in Zapier workflows. Once implemented, this solution prevents "file too large" errors and keeps your document automation running smoothly.
Frequently Asked Questions
Common questions about this topic
Google Docs has undocumented size limits for API operations. When documents exceed these limits (often due to embedded images or complex formatting), the standard 'Create Document from Template' action fails with this generic error message.
The limits appear to be around 5MB for most operations, though Google doesn't officially document these constraints. The error suggests a file size issue, but the real limitation is in the API's capacity rather than your actual document size.
Google Docs API is optimized for document editing operations but has stricter size limits. It's designed for manipulating document content rather than handling large file operations.
Google Drive's API handles file operations at the storage level, allowing larger document duplication through its more robust infrastructure. It treats documents as files first, content second, which removes many of the size constraints.
Yes. The Google Drive copy operation preserves all formatting, images, and document structure exactly as the original template. The only difference is the underlying API endpoint used to perform the duplication.
At 6:30 in the video, we demonstrate how the duplicated document maintains identical formatting to the original, including complex elements like:
- Embedded images and charts
- Custom headers and footers
- Table formatting and styles
Absolutely. After duplication via Google Drive API, you can use standard Google Docs actions to populate merge fields or make other edits. The workflow just splits the duplication and editing into separate steps.
This two-step approach actually provides more flexibility. You can:
- First duplicate the document via Google Drive API
- Then use the document ID in subsequent steps to populate fields
- Even chain multiple editing operations if needed
Google Drive's API can handle documents up to 50MB - significantly larger than the undocumented limits in Google Docs API. For context, most business templates with multiple images stay under 10MB.
The 50MB limit applies to the native Google Docs format. If you convert documents to other formats (like PDF), different size limits may apply based on the target format's specifications.
Yes. The same Google Drive API approach works in Make.com, n8n, or any platform that supports custom API calls. The endpoint and parameters remain identical across automation tools.
The only differences would be:
- How each platform handles authentication
- The specific interface for configuring API requests
- How response data is passed to subsequent steps
Document and folder IDs appear in the URL when you open them in Google Drive. For documents, it's between '/d/' and '/edit'. For folders, it's after '/folders/'. These IDs never change.
At 3:15 in the video, we show exactly where to find these IDs. Remember that:
- Document IDs are typically 44 characters long
- Folder IDs are usually 33 characters
- Both consist of uppercase/lowercase letters and numbers
GrowwStacks specializes in fixing broken automations and implementing robust document workflows. We can audit your existing Zapier setup, implement this Google Drive solution, and build error-proof document generation systems that scale with your business needs.
Our automation experts will:
- Analyze your current document templates and workflows
- Implement the Google Drive API solution with proper error handling
- Build monitoring to alert you of any issues before they impact operations
Book a free consultation to discuss your specific requirements and how we can streamline your document automation.
Stop Losing Time to Broken Document Workflows
Every hour your automation is down costs productivity and creates manual work. Let GrowwStacks implement this Google Drive solution and build you a bulletproof document generation system—usually within 2 business days.