---
category: [Administration & Integrations, Platform and Product Extensions, Platform and Product Extensions/Integration, Administration & Integrations/Custom Integrations & Apps, Platform and Product Extensions/Workday Extend]
keyword: [Extend, Graph, Limits]
nav: wcp_docs
parent_url: /wcp_docs/
title: >- 
  Reference: Limits on Graph API
layout: subsection
---

## <a id="limitsongraphapi"></a>Limits on Graph API

<table><thead><tr><th>Limit</th><th>Maximum Value or Recommendation</th></tr></thead><tbody><tr><td>Response page limit</td><td>Default is 20. Maximum is 100.</td></tr><tr><td>Graph API request timeout</td><td>3 minutes <p>If the processing time exceeds the limit, the query or mutation will return an error, and the response will include only the processed fields.</p></td></tr><tr><td>Query complexity</td><td>Errors can occur if a query or mutation operation is overly complex. An operation can be complex if it has too many nested levels of requested data or it takes too long to process.</td></tr><tr><td>Rate limiting</td><td>We rate limit requests when we determine that the number or complexity of queries and mutations start to impact the overall tenant health. <p>A Graph API request returns an HTTP response code of <b>429 Too Many Requests</b> when other requests overload the resources on your tenant. If you encounter this response code, we recommend that you implement:</p><ul><li>An exponential back-off retry mechanism for the process that generates the API requests.
</li><li>Caching.
</li></ul></td></tr><tr><td>Related business objects</td><td>When you query a multi-instance field as a related business object, a limit of 500 related business object instances will be returned. The request will return an error if there are more than 500 instances in the related business object.</td></tr><tr><td>File attachment size</td><td>30 MB maximum per file attachment. Graph API supports the file types that have been configured on the tenant. See the System Setup section in <a href="https://doc.workday.com/admin-guide/en-us/manage-workday/tenant-configuration/tenant-setup/dan1370797880489.html">Administrator Guide: Reference: Edit Tenant Setup - System</a>. <p><b>Note:</b> If you use Graph API with the <code>fileUploader</code> widget in an Extend app, the limits imposed by the <code>fileUploader</code> overrides the Graph API limits. See the fileUploader limits. See the <code>fileUploader</code> limits in <a href="/wcp_docs/GUID-54854abf-9a2e-4788-8aa3-9a92ddf1e71e.html">Reference: Limits on Presentation Components</a>.</p></td></tr></tbody></table><br/>