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Animal and Plant Health Inspection Service
U.S. Department of Agriculture
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APHIS Provides New Core Message Set Help Desk for ACE Users

The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) is excited to announce the launch of its new APHIS Core Message Set Help Desk!

Starting March 1, 2021, importers, brokers and filers will be able to contact the Help Desk to get help with submitting APHIS Core Message Sets in the Automated Commercial Environment (ACE). The Help Desk will be available Monday through Friday, 7:00 am to 11:00 pm Eastern Standard Time to review stakeholder message sets, explain error codes and flags, provide disclaim guidance, and answer general message set questions.

On March 15, 2021, APHIS will expand the APHIS Core Message Set Help Desk hours to Saturdays, 8:00 am to 4:00 pm Eastern Standard Time to better serve its users.

When users call the Help Desk, they should:

  • Select Option 1 for new inquiries
  • Select Option 2 for existing inquiries with a reference ticket
  • Provide their full Message Set transmission and associated error codes if their inquiry concerns either topic

Users can reach the APHIS Core Message Set Help Desk at 1-833-481-2102, or they can submit APHIS Core Message Set questions by e-mail to Users can also visit APHIS’  ACE webpage and the APHIS Core Message Set  Questions and Answers webpage for additional information and resources.

USDA touches the lives of all Americans each day in so many positive ways. In the Biden-Harris Administration, USDA is transforming America’s food system with a greater focus on more resilient local and regional food production, fairer markets for all producers, ensuring access to safe, healthy and nutritious food in all communities, building new markets and streams of income for farmers and producers using climate smart food and forestry practices, making historic investments in infrastructure and clean energy capabilities in rural America, and committing to equity across the Department by removing systemic barriers and building a workforce more representative of America. To learn more, visit

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