API Reference


To ensure a positive experience for all, the Workiva Platform API enforces a number of constraints.

Rate Limits

The Workiva Platform API may rate limit clients based on the current system load or an excessive request frequency. In these cases, you receive an error response with status code 429 Too Many Requests.

Payload Size

The Workiva Platform API currently limits the size of any request payloads to a maximum of 10485760 bytes (10MB).


The Workiva Platform API currently limits the length of any request to 29 seconds.

Feature Limits


Sheets per Spreadsheet1,000
Cells per Spreadsheet2,000,000
Rows per Sheet1,048,576
Columns per Sheet16,384
Sheet name length100
Characters per cell8,192
XLSX imports16MB