Technology Application Availability
See a list of technology hours of availability and outages for your Fannie Mae application(s). Please note, this list is not all-inclusive. If you don't see your application on this list, please refer to the application page for updates regarding availability.
Hours of availability and outages by application
| Asset Management Network | Every day, 8 a.m. to 10 p.m. ET. Files are processed Monday through Saturday. No processing occurs Sunday. Due to SIR Loanfinder maintenance, HSSN Case creation will be unavailable from 8 p.m. to midnight ET on the second business day of each month. |
| Cash Remittance System | You may edit any draft requests until 4:00 p.m. Eastern Time on the business day preceding the effective draft date. |
| Collateral Underwriter | ALERT: Collateral Underwriter® (CU®) will undergo scheduled maintenance from Friday, Sept. 19, at 9 p.m. ET until Saturday, Sept. 20, at 1 a.m. ET. During this time, any new appraisal submissions to Fannie Mae will not be displayed in CU and will be processed automatically when the maintenance is complete. Every day, 24 hours a day, except from 1 a.m. to 5 a.m. ET the first and third Sundays each month due to maintenance. |
| Condo Project Manager | Every day, 24 hours a day, except from 1 a.m. to 5 a.m. ET the first and third Sundays each month due to maintenance. |
| Credit Variance Administration System | Every day, 24 hours a day. |
| Default Reporting Application | Every day, 24 hours a day. |
| Desktop Underwriter & Desktop Originator | ALERT: Collateral Underwriter® (CU®) will undergo scheduled maintenance from Friday, Sept. 19, at 9 p.m. ET until Saturday, Sept. 20, at 1 a.m. ET. During this time, collateral services, including value acceptance (appraisal waiver) and value acceptance + property data messages in Desktop Underwriter® (DU)®, will be unavailable. Every day, 24 hours a day, except from 1 a.m. to 5 a.m. ET the first and third Sundays each month due to maintenance. |
| Desktop Underwriter Validation Service | Every day, 24 hours a day, except from 1 a.m. to 5 a.m. ET the first and third Sundays each month due to maintenance. |
| Developer Portal | Every day, 24 hours a day, except from 1 a.m. to 5 a.m. ET the first and third Sundays each month due to maintenance. |
| Document Certification | Every day, 24 hours a day, except from 8 a.m. ET Saturday to 8 a.m. ET Sunday due to maintenance. |
| EarlyCheck | ALERT: Due to system maintenance and implementations, EarlyCheck™ will be unavailable during the following times: Every day, 24 hours a day, except from 5 p.m. ET Saturday to 8 a.m. ET Sunday due to maintenance. |
| eBoutique | Monday through Friday, 9 a.m. to 8 p.m. ET. |
| eTransfers | Monday through Friday, 9 a.m. to 5 p.m. ET. |
| Fannie Mae Connect | Every day, 24 hours a day, except from 10 a.m. to 2 p.m. ET the third Sunday each month due to maintenance. |
| Fannie Mae Invoicing | Every day, 24 hours a day. |
| File Transfer Solutions | Every day, 24 hours a day. |
| Income Calculator | Every day, 24 hours a day, except from 1 a.m. to 5 a.m. ET the first and third Sundays each month due to maintenance. |
| Loan Delivery | Every day, 24 hours a day, except from 8 a.m. ET Saturday to 8 a.m. ET Sunday due to maintenance. |
| Loan Delivery Test Environment | Loan Delivery Test Environment will be unavailable from 11 a.m. to 8 p.m. ET Thursday and 5 p.m. ET Saturday to 8 a.m. ET Sunday each week. |
| Loan Quality Connect | Every day, 24 hours a day, except from 12 a.m. to 6 a.m. ET daily and the third Saturday of each month from 6 p.m. to 6 a.m. ET of the following Sunday for system maintenance. |
| Loan Servicing Data Utility (LSDU) | ALERT: Loan Servicing Data Utility (LSDU) will undergo scheduled maintenance from Saturday, Sept. 13, at 8 a.m. ET until Monday, Sept. 15, at 8 a.m. ET. Monday through Saturday. |
| MarketPoint | Every day, 24 hours a day, except from 6 a.m. to 6.30 a.m. ET daily and from 1 a.m. to 5 a.m. ET Sunday, and from 1 a.m. to 11 a.m. ET every third Sunday due to maintenance. |
| Master Servicing Portfolio Manager | ALERT: Master Servicing Portfolio Manager will undergo scheduled maintenance from Saturday, Sept. 13, at 8 a.m. ET until Monday, Sept. 15, at 8 a.m. ET. Every day, 24 hours a day, except from 2 a.m. to 6 a.m. ET every second Sunday. |
| MBS Trading Portal | Every day, 24 hours a day. Trading hours are 8 a.m. ET to 5:00 p.m. ET Monday – Friday. |
| Mortgage Insurance Claims Portal | Every day, 24 hours a day. |
| Pricing & Execution - MBS | Every day, 24 hours a day, except from 10 p.m. ET Saturday to 6 a.m. ET Sunday the third week each month due to maintenance. |
| Pricing & Execution Whole Loan | Every day, 24 hours a day, except from 6 a.m. to 6:30 a.m. ET daily and from 1 a.m. to 5 a.m. ET Sunday, and from 1 a.m. to 11 a.m. ET every third Sunday due to maintenance. |
| Property 360 | Every day, 24 hours a day. |
| Property Data API Review Tool | Every day, 24 hours a day. |
| Quick Exchange | Every day, 24 hours a day. |
| Servicer Expense Reimbursement | Monday through Saturday, 24 hours a day. Sunday, 9 a.m. to midnight ET. |
| Servicing Management Default Underwriter (SMDU) | The following SMDU functionality is available every day, 24 hours a day, except from 7 p.m. ET on Sunday to 5 a.m. ET on Monday for maintenance: Loss Mitigation “Automated Workout Decisioning” Loss Mitigation Valuations Borrower-Initiated Requests to Terminate Mortgage Insurance For SMDU Loss Mitigation “Case Management” functionality, refer to the AMN application hours of availability. |
| Servicing Marketplace | Every day, 24 hours a day, except from 6 a.m. to 6.30 a.m. ET daily and from 1 a.m. to 5 a.m. ET Sunday, and from 1 a.m. to 11 a.m. ET every third Sunday due to maintenance. |
| Servicing Transfer Approval | Every day, 24 hours a day. |
| Technology Manager | Every day, 24 hours a day. |
| Uniform Closing Dataset Collection Solution | ALERT: Due to system maintenance and implementations, the UCD Collection Solution will be unavailable from 8 a.m. – 5 p.m. on Saturday, Sept. 20, 2025. Every day, 24 hours a day, except from 5 p.m. Saturday to 8 a.m. ET Sunday due to maintenance. |
| Uniform Collateral Data Portal | ALERT: Collateral Underwriter® (CU®) will undergo scheduled maintenance from Friday, Sept. 19, at 9 p.m. ET until Saturday, Sept. 20, at 1 a.m. ET. During this time, any new appraisal submissions to Fannie Mae will have an “In Progress” status in the Uniform Collateral Data Portal® (UCDP®) and will be processed automatically when the maintenance is complete. Every day, 24 hours a day, except from 11 p.m. ET on Saturdays until 5 a.m. ET on Sundays. UCDP Integration Environment AvailabilityEvery day 24 hours a day, except from 9 p.m. ET to 3 a.m. ET on Tuesdays, Wednesdays, and Thursdays. |
