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Author's profile photo Mahendrakumar D.P.

Failed to connect System Landscape Directory(SLD);contact your system administrator

Hello Team,

Greetings for the day !!!

If you are facing SLD issue kindly follow the following steps to resolve the above mentioned error.


1. Rename SAP** Folder
C:\Users\(your user)\Local Settings\Application Data (or AppData)\SAP

2.Start ‘SAP Business One Server Tools Service’ From Services

3.Make Sure ‘C:\Program Files (x86)\SAP\SAP Business One\Conf\b1-local-machine.xml’ IP Address Mentioned here correct one or Server Name.

4.Verify the direction of the IP Address and Name Of Server in the Host File that is in

5. Open SAP Business One as “Run As Administrator”

6. Clean Temp Folder via Open Run Command –> %Temp% –> Enter –> Delete All Files

7. Please Check Antivirus or Firewall Settings too.




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      Author's profile photo John Fuller
      John Fuller



      I had this problem immediately after updating our Server2019 installation using the September-2022 cumulative operating system update.

      All users using the SAPB1 client were affected.   However, users remote desktop onto the SAP server could login.

      This only applies to SQL users.  HANA ones are okay.

      It turned out that our server network card was configured as 'public, not 'private' or 'domain'.   And the server-update reinforced the firewall.

      If we turned off the firewall, then everyone could login.   When we turned it on, nobody could.


      So, the fix was to use the 'secpol' utility in Windows server and make the network interface 'private'

      Then to turn off the firewall for the Private Network


      Hope this helps.


      Of course, I should be opening up specific ports.  These are covered in the document

      Administrator's Guide
      SAP Business One 10.0 FP 2202
      Document Version: 1.9 – 2022-07-05
      SAP Business One Administrator's Guide
      All Countries

      Appendix 1: List of Default Ports for Different Server Components

      These are the point to be opened

      Default Ports Server Components Remarks 30000 or 30001
      CORBA license server
      40000 Components in shared Tomcat, including: • System Landscape Directory • License Service (HTTPS) • Job Service • Extension Manager This port should be exposed to the Internet if you need to use some SAP Business One components on Internet. 50000 (for load balancer); 50001, 50002, 50003… (for load balancer members)
      Service Layer
      The service layer is for internal component calls only and you do not need to expose it to the Internet. 60000 Workflow 443
      Reverse proxy
      8080 (for HTTP) 8443 (for HTTPS) Integration Framework 8100
      Browser Access
      If you need to access SAP Business One services via the Internet, you need to expose this port to the Internet. 443 Web Client 7299
      Electronic Document Service
      60010 Authentication Service 60020
      API Gateway Servic

      Author's profile photo Daniel Zadva
      Daniel Zadva

      The solution worked for me. Thank you

      Author's profile photo Freddy Ant. Peña
      Freddy Ant. Peña

      I have the same problem, but in my case is it with DI API.

      I have two test servers, SAP 9.3.200 with SQL Server 2017 and SAP 10.0.181 with SQL Server 2019

      Version 9.3.200 works perfectly, but when I change the libraries to the new version, everything is supposed to work, but it doesn't, it shows me the following error message:

      Failed to connect SLD, make sure SLD server is correct and available -4009


      Am I missing some component to install in version 10.0.181?