Open a supported browser: 

• Chrome
• Firefox 

Navigate to the following portal:

http://modac.cancer.gov/ 

The home page appears. 

Select About > Contact. The Contact Us page appears. 

• If you have logged in, as described in Logging In, the system automatically specifies your name and email address. 
• Otherwise, specify your name and email address. 

Type your message. To copy one of the following examples, click the icon next to it:

• I would like permission to upload data.

• I would like to change the email address in my MoDaC user account.

• I would like to change the groups listed on the Manage Account page for my MoDaC user account.

• I have a question about preparing a metadata file to perform a bulk upload. I tried following the instructions on the Uploading Multiple Assets from a Globus Endpoint page, but I still need help.

• My upload is failing and I don't know why. I tried clicking retry, but the issue persists.

• My download is failing and I don't know why. I tried clicking retry, but the issue persists.

• I would like to change which groups can access a collection, but it doesn't meet the conditions listed on the Managing Group Access to an Existing Collection page.

• I would like to delete data, but they don't meet the criteria listed on the Deleting Data page.

Respond to the reCAPTCHA prompt.

Click Submit. The system sends your message to the MoDaC team.