November 15, 2025

We will be migrating our DNS records from GoDaddy to DNS Made Easy on Saturday, November 15, 2025 at 9:00 PM ET. This change will help keep our services reliable and scalable. No action is required.

What to expect?

Most customers will not experience any issues. Changes usually finish within an hour but can take up to 24 hours.

If you experience any connection issues after the migration, talk to your IT team or network administrator. They may need to flush your DNS cache or check your corporate network settings.

What is changing?

We are moving our DNS records from Go Daddy to DNS Made Easy. You will still have the same access and services. The only change will be the authoritative DNS server (NS record) for our domains.

Technical details

• The migration involves updating our Name Servers (NS) from pdns11.domaincontrol.com and pdns12.domaincontrol.com to ns10.digicertdns.com through ns15.digicertdns.com.

• During the maintenance, we expect both services to resolve correctly, so your service will not be disrupted. However, in the unlikely event that DNS caching is in use and GoDaddy revokes ahead of schedule, there could be some temporary resolution issues. If this happens, follow these steps:

  • For Windows users, flush your local DNS cache using the command ipconfig/flushdns.

  • For enterprise systems, consult your network administrator for DNS cache refresh procedures.

If you have any questions or concerns about this change, reach out to the support team.

October 27 and 30, 2025

We will be doing maintenance in the UAT and Production environments on the following dates:

• UAT: Monday, October 27 from 10:00 AM to 11:00 AM ET

• Production: Thursday, October 30 from 8:00 PM to 9:00 PM ET

During these maintenance windows, you may experience temporary disruptions to these functions:

• CertManager

  • Emails

  • Bulk uploads (exemptions and customers)

  • Bulk downloads (PDFs, error reports, exemption data, customer data)

  • Reports

• Batch Determination

  • File uploads

• Use Tax Manager

  • File imports

  • Report generation

October 19, 2025

We will be doing system maintenance in the UAT and Production environments from 12:00 PM to 2:00 PM ET on Sunday, October 19.

There will be no downtime, but you might experience occasional connection timeouts when using the following products and processes:

• All S1 products

• Configuration calls to Tax Determination

• Pending transaction calls to Tax Determination (including NetSuite and Simple Connect)

Quotes and audits will not be impacted. Data may take longer to appear on reports.

August 28, 2025

We will be doing system maintenance from 8:00 PM ET on Thursday, August 28 to 1:00 AM ET on Friday, August 29.

Potential intermittent connectivity:

• Pending transactions (including NetSuite and Simple Connect)

Not impacted:

• Quotes
• Audits

July 10, 2025

We will be doing system maintenance on Thursday, July 10, 2025.

This maintenance will not impact S1 products or API traffic.

July 9, 2025

We will be doing system maintenance from 11:00 PM ET on Wednesday, July 9 to 3:00 AM ET on Thursday, July 10.

Potential intermittent downtime:

• All S1 products

Not impacted:

• Quotes
• Audits

June 28, 2025

We'll be doing maintenance in the UAT and Production environments from 11:00 PM ET on Saturday, June 28 to 1:00 AM ET on Sunday, June 29.

Downtime:

• All S1 products
• Configuration calls to Tax Determination
• Pending transaction calls to Tax Determination (including NetSuite)

Not impacted:

• Quotes

Audits in Tax Determination and Simple Connect may take a few hours to appear on reports or become available in Sales Tax Filing.

April 17 and 21

We will be doing maintenance in Sales Tax Filing on the following dates:

• UAT: Thursday, April 17, 2025 from 8:00 PM ET to 9:30 PM ET
• Production: Monday, April 21, 2025 from 8:00 PM ET to 9:30 PM ET

There may be intermittent downtime for Sales Tax Filing during these windows.

February 26, 2025

We will be doing maintenance on Wednesday, February 26, 2025.

This maintenance will not impact S1 products or API traffic.

January 13, 2025

We will be doing maintenance in the UAT environment on Monday, January 13, 2025. This maintenance will not impact S1 products or API traffic.

September 26, 2024

We will be doing firewall maintenance in the UAT and Production environments from 8:00 PM ET on Thursday, September 26 to 12:00 AM ET on Friday, September 27.

Potential intermittent downtime:

• All S1 products
• Configuration calls to Tax Determination
• Pending transaction calls to Tax Determination (including NetSuite)

Not impacted:

• Quotes

Audits in Tax Determination and Simple Connect may take a few hours to appear on reports or become available in Sales Tax Filing.

August 29, 2024

We will be doing firewall maintenance in the UAT and Production environments from 8:00 PM ET on Thursday, August 29 to 12:00 AM ET on Friday, August 30.

Potential intermittent downtime:

• All S1 products
• Configuration calls to Tax Determination
• Pending transaction calls to Tax Determination (including NetSuite)

Not impacted:

• Quotes

Audits in Tax Determination and Simple Connect may take a few hours to appear on reports or become available in Sales Tax Filing.

August 13 and 20, 2024

We will be doing firewall maintenance on the following dates:

• UAT and Production: 8:00 PM ET on Tuesday, August 13 to 2:00 AM ET on Wednesday, August 14
• UAT and Production: 8:00 PM ET on Tuesday, August 20 to 2:00 AM ET on Wednesday, August 21

Potential intermittent downtime:

• All S1 products
• Configuration calls to Tax Determination
• Pending transaction calls to Tax Determination (including NetSuite)

Not impacted:

• Quotes
• Audits

July 24-28, 2024

Due to the criticality of the update, we have decided to move up the database maintenance initially scheduled for August 23 and complete some additional emergency maintenance. This maintenance is necessary to ensure the reliability of our services.

Updated database maintenance schedule:

UAT and Production: 7:00-10:00 PM ET on Wednesday, July 24

Potential intermittent downtime:

• All S1 products
• Configuration calls to Tax Determination
• Pending transaction calls to Tax Determination (including NetSuite)

Not impacted

• Quotes
• Audits

UAT and Production: 11:00 PM ET on Saturday, July 27 to 3:00 AM ET on Sunday, July 28 (rescheduled from August 23-24)

Potential intermittent downtime:

• S1 Gateway
• New and Legacy Tax Determination Cloud
• Use Tax Manager
• CertManager
• Batch Determination
• Sales Tax Filing
• NetSuite SuiteTax and NetSuite Legacy Tax adapters for Tax Determination
• Pending transaction calls to Tax Determination (including NetSuite)
• Pending transaction calls with Simple Connect

Not impacted:

• Quotes
• Audits

June 27 maintenance rescheduled to July 23, 2024

The database maintenance that was originally scheduled for June 26 and 27 will now take place from 8:00 PM ET on Monday, July 22 to 4:00 AM ET on Tuesday, July 23. This maintenance impacts both the UAT and Production environments.

Potential intermittent downtime:

• All S1 products
• Configuration calls to Tax Determination
• Pending transaction calls to Tax Determination (including NetSuite)

Not impacted:

• Quotes
• Audits

June 27, 2024 database maintenance

We will be doing database maintenance in the UAT and Production environments from 8:00 PM ET on Thursday, June 27 to 4:00 AM ET on Friday, June 28.

Potential intermittent downtime:

• All S1 products
• Configuration calls to Tax Determination
• Pending transaction calls to Tax Determination (including NetSuite)

Not impacted:

• Quotes
• Audits