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<!doctype html><html lang=en class=no-js><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name=generator content="Hugo 0.107.0"><meta name=robots content="index, follow"><link rel="shortcut icon" href=/favicons/favicon.ico><link rel=apple-touch-icon href=/favicons/apple-touch-icon-180x180.png sizes=180x180><link rel=icon type=image/png href=/favicons/favicon-16x16.png sizes=16x16><link rel=icon type=image/png href=/favicons/favicon-32x32.png sizes=32x32><link rel=icon type=image/png href=/favicons/android-36x36.png sizes=36x36><link rel=icon type=image/png href=/favicons/android-48x48.png sizes=48x48><link rel=icon type=image/png href=/favicons/android-72x72.png sizes=72x72><link rel=icon type=image/png href=/favicons/android-96x96.png sizes=96x96><link rel=icon type=image/png href=/favicons/android-144x144.png sizes=144x144><link rel=icon type=image/png href=/favicons/android-192x192.png sizes=192x192><title>Setup Table | alguidelines.dev - Business Central Design Patterns</title><meta name=description content="By Abhishek Ghosh, at Microsoft Development Center Copenhagen
<!doctype html><html lang=en class=no-js><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1,shrink-to-fit=no"><meta name=generator content="Hugo 0.110.0"><meta name=robots content="index, follow"><link rel="shortcut icon" href=/favicons/favicon.ico><link rel=apple-touch-icon href=/favicons/apple-touch-icon-180x180.png sizes=180x180><link rel=icon type=image/png href=/favicons/favicon-16x16.png sizes=16x16><link rel=icon type=image/png href=/favicons/favicon-32x32.png sizes=32x32><link rel=icon type=image/png href=/favicons/android-36x36.png sizes=36x36><link rel=icon type=image/png href=/favicons/android-48x48.png sizes=48x48><link rel=icon type=image/png href=/favicons/android-72x72.png sizes=72x72><link rel=icon type=image/png href=/favicons/android-96x96.png sizes=96x96><link rel=icon type=image/png href=/favicons/android-144x144.png sizes=144x144><link rel=icon type=image/png href=/favicons/android-192x192.png sizes=192x192><title>Setup Table | alguidelines.dev - Business Central Design Patterns</title><meta name=description content="By Abhishek Ghosh, at Microsoft Development Center Copenhagen
This is the first and most well-known of the two usual applications of the Singleton …"><meta property="og:title" content="Setup Table"><meta property="og:description" content="By Abhishek Ghosh, at Microsoft Development Center Copenhagen
This is the first and most well-known of the two usual applications of the Singleton Table pattern in Dynamics NAV.
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</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span>INSERT<span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span><span style=display:flex><span><span style=color:#f8f8f8;text-decoration:underline> </span><span style=color:#204a87;font-weight:700>END</span><span style=color:#000;font-weight:700>;</span><span style=color:#f8f8f8;text-decoration:underline>
</span></span></span></code></pre></div><p>The following diagram describes the flow of the program, once the user tries to access the setup information. The user opens the page. If the record containing setup information already exists, then the page opens on the existing record. Else, a new empty record is created and the page opens on it.</p><p><a href=6675.NAVSetupTablePattern2.png><img src=6675.NAVSetupTablePattern2.png alt=" "></a></p><p><strong>Company-Initialize Codeunit</strong></p><p>The Company-Initialize codeunit (codeunit 2) is executed when a new company is created. We recommended that you add records to the single-record tables in this codeunit. If some of the fields are expected to have default values, they can also be populated here.</p><p><strong>NAV Usages</strong></p><p>Several Setup tables in NAV implement this pattern. Some of those are:</p><ul><li>Table 98 General Ledger Setup</li><li>Table 311 Sales & Receivables Setup</li><li>Table 312 Purchases & Payables Setup</li><li>Table 313 Inventory Setup</li><li>Table 242 Source Code Setup</li></ul><p><strong>Variation:</strong> While most tables just insert a record with empty primary key in codeunit 2, table 242 (&ldquo;Source Code Setup&rdquo;) offers an example of inserting default values into all fields of the table (method &ldquo;InitSourceCodeSetup&rdquo;). This practice, wherever feasible, is likely to reduce the effort during implementation.</p><p><strong>Related resources:</strong> <a href=http://www.klemmensen.ca/Blog/Post/35/Initialize-Setup-Tables>Considerations on optimizing the Singleton Table, by Søren Klemmensen</a>.</p><div class="text-muted mt-5 pt-3 border-top">Last modified February 24, 2022: <a href=https://github.com/microsoft/alguidelines/commit/5ee0436639455a35835c5ce88241d3fad662ee06>Added tags & categories + cleanup (5ee04366)</a>
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