Troubleshoot
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When working with shared contacts, you might encounter the following issues.
Firewall issues
If your firewall blocks HTTP PUT messages, include an X-HTTP-Method-Override:
PUT header in a POST request. For more information, see
Google Data API protocol basics.
If your firewall blocks HTTP DELETE messages, include an
X-HTTP-Method-Override: DELETEheader in a POST request. For more
information, see
Google Data API protocol basics.
Limits
The following summarizes the constraints that apply to the Domain Shared Contacts API:
- A single shared contact list can contain up to 200,000 entries.
- A single shared contact can contain up to 2KB of data. The total
XML that represents the shared contact can be larger than 2KB.
- A response is truncated if it exceeds 10MB in length.
- One batch request can include up to 100 operations.
- Changes can take up to 24 hours to be reflected in the email address
autocomplete and the contact manager.
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Last updated 2025-08-28 UTC.
[null,null,["Last updated 2025-08-28 UTC."],[],[],null,["# Troubleshoot\n\nWhen working with shared contacts, you might encounter the following issues.\n\nFirewall issues\n---------------\n\nIf your firewall blocks HTTP `PUT` messages, include an `X-HTTP-Method-Override:\nPUT` header in a `POST` request. For more information, see\n[Google Data API protocol basics](https://developers.google.com/gdata/docs/2.0/basics).\n\nIf your firewall blocks HTTP `DELETE` messages, include an\n`X-HTTP-Method-Override: DELETE`header in a `POST` request. For more\ninformation, see\n[Google Data API protocol basics](https://developers.google.com/gdata/docs/2.0/basics).\n\nLimits\n------\n\nThe following summarizes the constraints that apply to the Domain Shared Contacts API:\n\n- A single shared contact list can contain up to 200,000 entries.\n- A single shared contact can contain up to 2KB of data. The total XML that represents the shared contact can be larger than 2KB.\n- A response is truncated if it exceeds 10MB in length.\n- One batch request can include up to 100 operations.\n- Changes can take up to 24 hours to be reflected in the email address autocomplete and the contact manager."]]
