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25 R2 - Getting Error while adding the Existing Screen (Modern UI)

  • Nov 19, 2025 12:13 PM UTC
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Jr Varsity III
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Hi Everyone, 

When I’m trying to add the existing screen (Sales Order Preferences), I’m receiving below error. Can you please help fix this issue.

 

 

Best answer by Dmitrii Naumov

​@nsmith51 it’s a known issue fixed in SP1 for 25r2. 

As a workaround, you can set Ui Mode = Classic temporarily in the sitemap for the screen you are trying to customize

 

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Dipak Nilkanth
Pro III
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Hi ​@nsmith51,

Have you tried Resetting Caches and Restarting the Application from the Apply Updates screen?
I faced a similar issue before, and it was resolved after performing these steps.

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Dipak Nilkanth || 2X MVP @2025 & 2026 || https://www.linkedin.com/in/dipak-nilkanth-293591102 || Acumatica Developer
    Dmitrii Naumov
    Community Manager
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    • Dmitrii Naumov
    • Community Manager
    • Answer
    • Nov 19, 2025 4:47 PM UTC

    ​@nsmith51 it’s a known issue fixed in SP1 for 25r2. 

    As a workaround, you can set Ui Mode = Classic temporarily in the sitemap for the screen you are trying to customize

     

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      Dipak Nilkanth
      Pro III
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      ​@nsmith51 as ​@Dmitrii Naumov suggested, I have followed this step as well — I just forgot to mention it earlier.

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      Dipak Nilkanth || 2X MVP @2025 & 2026 || https://www.linkedin.com/in/dipak-nilkanth-293591102 || Acumatica Developer
        Jr Varsity III
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        • John Masi74
        • Author
        • Jr Varsity III
        • Nov 20, 2025 1:16 PM UTC

        Okay. How to add custom field in the Sales Order Preferences screen, do we need to use the Classic UI for Sales Order Preferences screen as well? 

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