{"id":3541,"date":"2025-09-11T11:53:29","date_gmt":"2025-09-11T11:53:29","guid":{"rendered":"https:\/\/www.greytrix.com\/blogs\/acumatica\/?p=3541"},"modified":"2025-09-11T11:53:30","modified_gmt":"2025-09-11T11:53:30","slug":"adding-a-multi-select-combo-box-in-acumatica","status":"publish","type":"post","link":"https:\/\/www.greytrix.com\/blogs\/acumatica\/2025\/09\/11\/adding-a-multi-select-combo-box-in-acumatica\/","title":{"rendered":"Adding a Multi-Select Combo Box in Acumatica"},"content":{"rendered":"\n

If you’ve worked with Acumatica<\/a><\/strong>, you know the standard dropdown only lets you pick one item. But what if you need to choose several? In real projects, that\u2019s common\u2014and that\u2019s where a multi-select combo box can make life easier.<\/p>\n\n\n\n

Let\u2019s take the Project screen (PM301000)<\/strong> as an example. Say you want to tag your projects with labels like “Internal,” “Billable,” or “Urgent.” A single-select dropdown just won\u2019t do the job if a project can fall under more than one category.<\/p>\n\n\n\n

That\u2019s where a multi-select combo box<\/strong> comes in. Users can add as many tags as needed to a project without having to dig through menus or change any settings.<\/p>\n\n\n\n

Step 1:<\/strong><\/p>\n\n\n\n

Open the Customization Screen (SM204505).<\/p>\n\n\n\n

Click on the “Add” button, add the project name, click on “Save,” and publish the project.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Example:<\/strong><\/p>\n\n\n\n

As an example, we will use the Project screen to demonstrate how to add a multi-select combo box.<\/p>\n\n\n\n

    \n
  1. Open the Customization Project.<\/li>\n\n\n\n
  2. In the customized screens section, click the “+” icon to add a new screen (In my example it is Project).<\/li>\n\n\n\n
  3. Open panel where you want to add new field.<\/li>\n\n\n\n
  4. Then, select a field and use \u201cCreate New Field\u201d command to create a new field.<\/li>\n\n\n\n
  5. go to Data Access classes and select you class and field.<\/li>\n\n\n\n
  6. add PXStringList in the field
    [PXStringList(new string[] { \u201cI\u201d, \u201cB\u201d, \u201cU\u201d},\u00a0
    new string[] { \u201cInternal\u201d, \u201cBillable\u201d, \u201cUrgent\u201d },\u00a0MultiSelect = true)]<\/code>
    there is one additional parameter \u201cMultiSelect = true\u201d that advises
    Acumatica to store multiple values in this field.<\/li>\n\n\n\n
  7. Publish this customization project.\u00a0<\/li>\n<\/ol>\n\n\n\n
    \"\"<\/figure>\n\n\n\n

    Step 2<\/strong><\/p>\n\n\n\n

    1. Use the \u201cCreate Controls\u201d button to create a field. Use drag and drop to adjust field position. Please make sure that your field is of type \u201cComboBox.\u201d<\/p>\n\n\n\n

    2. Set the multiselect property to TRUE on the user interface control.\u00a0<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    Click on the OK and then publish the project.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    The Project screen now includes a Project Tags section, where you can select more than one tag for better categorization.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    Conclusion<\/strong>:<\/p>\n\n\n\n

    Allowing a multiselect option for a dropdown field would help businesses to manage their work more fluently rather than adding a new field for the same thing, which is already available. It\u2019s a straightforward process, and you can put it to use immediately.<\/p>\n\n\n\n

    <\/p>\n","protected":false},"excerpt":{"rendered":"

    If you’ve worked with Acumatica, you know the standard dropdown only lets you pick one item. But what if you need to choose several? In real projects, that\u2019s common\u2014and that\u2019s where a multi-select combo box can make life easier. Let\u2019s take the Project screen (PM301000) as an example. Say you want to tag your projects\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[146,15,3,130,14,1],"tags":[4,317,261,319,318],"class_list":["post-3541","post","type-post","status-publish","format-standard","hentry","category-acumatica","category-acumatica-customization","category-acumatica-erp","category-acumatica-product","category-acumatica-services","category-uncategorized","tag-acumatica","tag-customization-screen-2","tag-editor","tag-multiselect-dropdown","tag-project-screen"],"yoast_head":"\nAdding a Multi-Select Combo Box in Acumatica<\/title>\n<meta name=\"description\" content=\"Allowing multiselect in dropdowns helps businesses manage work smoothly without adding extra fields. 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