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Issue with fresh install of T220 development course

  • June 18, 2026
  • 2 replies
  • 50 views

I am working through the Developer course program, and somewhere along the line i had messed up work i did in T210 while working through T220. I couldnt figure out the problem after many hours, and decided it best to just start over with a fresh T220 install using the Acumatica ERP Configuration tool. 

It doesnt seem to have worked properly. With a fresh install, when trying to click the Services and Prices, it says

‘ Error: A site map node with the screen ID RS203000 does not exist. Maybe it was moved or removed.

 

But i can manually change the url to go directly to the screen. My Site Map has RS203000 on it. Its a screen in my customization project browser. Its included on the Site Map of the customization project. Its included in the Access Rights. 

 

Any guidance would be appreciated

2 replies

kpopova
Acumatica Employee
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  • Acumatica Employee
  • June 19, 2026

Which build of 2025 R2 do you use? We recommend that you complete the courses on the latest version, which is 2026 R1. You can find the guide for this version here.


  • Author
  • Freshman I
  • June 23, 2026

Which build of 2025 R2 do you use? We recommend that you complete the courses on the latest version, which is 2026 R1. You can find the guide for this version here.

 

I am using Site Version 25.200.0248. I don’t have access to 2026 R1, and i’m just following whatever it tells me at https://openuni.acumatica.com/learning-paths/developer-learning-paths/development/

Is this learning-path so far out of date that its not worth pursuing anymore? I think i’ve narrowed the issue down to the Generic Inquiries, when i remove those Generic Inquiries as substitutes, the buttons go back to working, just not to the list screen of the generic inquiry. Are you able to provide any guidance on how to get the generic inquiries working again?

Thank you,