Articles on: All About Same Item Multiple Boards

Enterprise Deployment & Firewall Whitelisting Guide

Overview


If you’re using Same Item Multiple Boards within a large organization or corporate network, your company’s firewall or network security policies may block the app from loading. This guide provides the necessary technical specifications for deploying Same Item Multiple Boards within a secured enterprise network. To ensure seamless synchronization and data integrity across your boards, IT administrators must configure network perimeters to allow communication between our infrastructure and your local environment.


Moreover, as of 2025/2026, many enterprise platforms have implemented stricter security protocols, including IP Address Restrictions and Zero Trust verification. To maintain uninterrupted service, organizations using these security features must explicitly authorize Same Item Multiple Boards static egress IP addresses. This ensures that our backend engine can securely process API requests and automation triggers without being blocked by your platform's security gateway. Monday.com provides more context about this feature in this article.


Symptoms


  • A red circle with a slash icon appears on the SIMB tab/view
  • The app view loads as a blank page or fails to initialize
  • The app works on personal/home networks but not on corporate WiFi or VPN


Why This Happens


Many enterprise organizations utilize corporate firewalls and security gateways that block external domains and API traffic by default. Because Same Item Multiple Boards must communicate with external servers to sync items between boards in real-time, these connections must be explicitly authorized. If you encounter connection issues or sync errors, it is typically a network configuration requirement rather than a software bug.


There are generally two reasons why these connections are blocked:


  1. Local Corporate Firewalls: Your internal IT infrastructure may block external app domains by default. If your company’s firewall prevents these connections, the SIMB app cannot load its interface or communicate with its database.
  2. Monday.com Security Policies (2025/2026): To meet evolving SOC2 and HIPAA standards, Monday.com Enterprise recently deployed stricter IP Address Restriction protocols. These require explicit whitelisting for all external API and Webhook traffic. To support this, Same Item Multiple Boards uses Static Egress IPs, allowing your IT team to set permanent, secure rules that ensure your automations trigger reliably without being rejected by Monday’s security perimeter.


Solution: Whitelist SIMB Endpoints


To restore or maintain connectivity, your IT team and Monday.com admin (for Enterprise account) must configure both your local corporate firewall and your Monday.com account security settings.


Local Network Configuration (Domains)


Ask your IT team to allow HTTPS (port 443) traffic to the following domains. This ensures the app can load its interface and communicate with its database from within your network:



Monday.com Platform Configuration (IP Restrictions)


If your organization uses Monday.com Enterprise with IP Address Restriction enabled, you must manually authorize Same Item Multiple Boards static egress IPs. This allows Monday.com to accept incoming sync requests from our servers.


Add these IP addresses to your monday.com "Allowed List":


  • Main backend: 139.59.154.242, 46.101.192.58
  • Frontend: 164.92.224.10, 142.93.169.78
  • Subitem Service: 139.59.210.52, 142.93.96.70
  • Item Service: 104.248.241.183, 64.226.67.137
  • Utils Service: 46.101.178.229, 138.197.184.163
  • Recipe Service: 159.89.5.105, 188.166.161.207
  • Sync setup Serviice: 188.166.167.153, 142.93.98.15


How to apply this:


  1. Log in to Monday.com as an Admin.
  2. Navigate to Administration > Security > IP address restriction.
  3. Click Add IP address, enter the IPs listed above, and set the status to Active.


This Monday.com help article may have a more updated interface and instructions about the experience.


How to Request Whitelisting


You can send the following message to your IT department:


Subject: Whitelist & IP Authorization Request: Monday.com App — Same Item Multiple Boards

Hi [IT Team],

We are using a monday.com marketplace app called “Same Item Multiple Boards”. To ensure the app functions correctly within our security perimeter, we need to authorize its domains and static IP addresses.

1. Corporate Firewall/Proxy (Domain Whitelisting)

Please whitelist the following domains for HTTPS (Port 443) traffic:

https://simb-frontend-prod-nxcub.ondigitalocean.app/

https://simb-prod-api-qgobi.ondigitalocean.app/

*.pioneera.io

2. Monday.com Enterprise Security (IP Authorization)

If we have IP Address Restrictions enabled within our monday.com Enterprise account, please add the following static egress IPs to the "Allowed List" in the monday.com Admin Security settings:

Backend: 139.59.154.242, 46.101.192.58

Frontend: 164.92.224.10, 142.93.169.78

These configurations are required for the app to load within our boards and to sync item data in real-time. As of 2026, these static IPs are necessary to comply with modern SOC2/HIPAA security handshakes between external marketplace apps and our monday.com environment.

Thank you!


Verification


After your IT team confirms the whitelist is in place:


  1. Clear your browser cache or open an incognito window
  2. Navigate to your Monday.com board
  3. Open the SIMB app view — it should load normally
  4. If the issue persists, try a different browser to rule out cached DNS


Still Having Issues?


If whitelisting doesn’t resolve the problem:

  • Confirm with IT that the whitelist is applied to your specific network segment or VPN
  • Check if your organization uses a web proxy that requires separate configuration
  • Contact us at support@pioneera.io and we’ll help troubleshoot with your IT team


Updated on: 25/03/2026

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