{"id":18587,"date":"2018-04-17T00:00:00","date_gmt":"2018-04-16T22:00:00","guid":{"rendered":"https:\/\/alistar.net\/?p=18587"},"modified":"2026-10-02T16:23:52","modified_gmt":"2026-10-02T14:23:52","slug":"how-to-avoid-duplicate-data-using-dynamics-365s-duplicate-detection-feature","status":"publish","type":"post","link":"https:\/\/alistar.net\/en\/blog\/how-to-dubbele-data-vermijden-met-duplicatendetectie-van-dynamics-365\/","title":{"rendered":"How-to: Avoid Duplicate Data with Dynamics 365 Duplicate Detection"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Duplicate records or data are one of the main causes of <strong>Poor data quality in a CRM database<\/strong>. In <strong><a href=\"https:\/\/alistar.net\/en\/microsoft-dynamics-365\/\">Microsoft Dynamics 365<\/a> You can \u2018keep your data clean\u2019 by detecting duplicates<\/strong>. You can create and enable duplicate detection rules to detect or prevent duplicate records.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, when you create a new contact in Dynamics 365, the system checks in the background to see if that contact already exists in the database. It does this by comparing record fields such as name and email address. If they match, you\u2019ll receive a warning and can choose to delete the duplicate record or merge the two records.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By default, Microsoft Dynamics 365 includes simple duplicate detection rules for record types <strong>accounts<\/strong> (companies and organizations), <strong>contacts<\/strong> (contacts) and <strong>leads<\/strong> (potential customers). Of course, you can also create new rules for other record types.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"#Bestaandeduplicatendetectieregel\">How do you enable an existing duplicate detection rule?<\/a><\/li>\n\n\n\n<li><a href=\"#Nieuweduplicatendetectieregel\">How do you enable a new duplicate detection rule?<\/a><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">How do you enable an existing duplicate detection rule?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For example, when importing a database of contacts, you want to avoid creating duplicate contacts in your CRM database. You can enable a duplicate detection rule by comparing the email addresses of existing records with those of the new, imported records.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 1: <\/strong>First, check your role in Microsoft Dynamics 365. If you do not have the correct role or permission, please contact your system administrator.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Bestaande-regel-stap1-screenshot-User-Role.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enabling an Existing Rule - Step 1 Screenshot: User Role\" class=\"wp-image-10400\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 2: <\/strong>Go to <strong>Settings<\/strong> > <strong>Data Management<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Bestaande-regel-stap2-screenshot-Data-Management.webp\" alt=\"Net IT CRM Blog: Duplicate Detection in Dynamics 365 - Enable Existing Rule - Step 2 Screenshot: Data Management\" class=\"wp-image-10401\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 3: <\/strong>select <strong>Duplicate Detection Rules<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Bestaande-regel-stap3-screenshot-Select-Duplicate-Detection-Rules-NEW.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable an Existing Rule - Step 3 Screenshot: Select Duplicate Detection Rules\" class=\"wp-image-10460\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 4: <\/strong>Double-click an existing duplicate detection rule, for example <em><strong>Contacts with the same email address<\/strong><\/em>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Bestaande-regel-stap4-screenshot-Select-Contacts-same-email-address.webp\" alt=\"Net IT CRM Blog: Duplicate Detection in Dynamics 365 - Enable Existing Rule - Step 4 Screenshot: Select Contacts with the Same Email Address\" class=\"wp-image-10404\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You will then see the screen shown below.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Bestaande-regel-stap4-screenshot-Rule-Contacts-same-email-address.webp\" alt=\"Net IT CRM Blog: Duplicate Detection in Dynamics 365 - Enabling an Existing Rule - Step 4 Screenshot: Rule &quot;Contacts with the Same Email Address&quot;\" class=\"wp-image-10406\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 5: <\/strong>check the box <strong>Case-sensitive<\/strong> if you want to make the duplicate detection rule case-sensitive.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Bestaande-regel-stap5-screenshot-Select-Case-sensitive.webp\" alt=\"Net IT CRM Blog: Duplicate Detection in Dynamics 365 - Enable Existing Rule - Step 5 Screenshot: Select &quot;Case Sensitive&quot;\" class=\"wp-image-10407\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 6: <\/strong>check the box <strong>Exclude inactive matching records<\/strong> Select this option if you want the duplicate detection rule to consider only active records.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Bestaande-regel-stap6-screenshot-select-exclude-inactive-matching-records.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable Existing Rule - Step 6: Screenshot - Select &quot;Exclude Inactive Matching Records&quot;\" class=\"wp-image-10408\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 7: <\/strong>Click on <strong>Save and Close<\/strong> > <strong>Publish<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Bestaande-regel-stap7-screenshot-Save-And-Close.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable Existing Rule - Step 7 Screenshot: Save and Close\" class=\"wp-image-10409\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How do you enable a new duplicate detection rule?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For example, when creating a contact (contact record), you want to make sure that it doesn't already exist as a lead record. You can do this by comparing email addresses.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 1: <\/strong>First, check your role within Microsoft Dynamics 365. Only a system administrator or system customizer can enable or disable these rules. If you do not have the appropriate role or permission, it is best to contact your system administrator.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap1-screenshot-User-Role.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable New Rule - Step 1 Screenshot: User Role\" class=\"wp-image-10411\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 2: <\/strong>Go to <strong>Settings<\/strong> > <strong>Data Management<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap2-screenshot-Data-Management.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable New Rule - Step 2 Screenshot: Data Management\" class=\"wp-image-10412\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 3: <\/strong>Select \"Duplicate Detection Rules\" &gt; Click <strong>New<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap3-screenshot-Select-Duplicate-Detection-Rules-NEW.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enabling a New Rule, Step 3 Screenshot: Select Duplicate Detection Rules\" class=\"wp-image-10462\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You will then see the screen shown below.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap3-screenshot-New-Duplicate-Detection-Rule.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection\u2014Enable New Rule\u2014Step 3 Screenshot: New Duplicate Detection Rule\" class=\"wp-image-10415\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 4: <\/strong>give a <strong>name (Name)<\/strong> and add a <strong>Description<\/strong> .<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap4-screenshot-Give-Name-And-Description.webp\" alt=\"Net IT CRM Blog: Duplicate Detection in Dynamics 365 - Enable New Rule - Step 4 Screenshot: Enter Name and Description\" class=\"wp-image-10416\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 5: <\/strong>Select from <strong>Duplicate Detection Rule Criteria<\/strong> > <strong>Base Record Type<\/strong>, the record type to which the rule applies, such as Contact.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap5-screenshot-Select-Base-Record-Type.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable New Rule - Step 5 Screenshot: Select Base Record Type\" class=\"wp-image-10418\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 6: <\/strong>Select from <strong>Matching Record Type<\/strong>, the record type to compare, for example <em>Lead<\/em>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap6-screenshot-Select-Matching-Record-Type.webp\" alt=\"Net IT CRM Blog: Duplicate Detection in Dynamics 365 - Enable New Rule - Step 6 Screenshot: Select Matching Record Type\" class=\"wp-image-10419\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 7: <\/strong>check the box <strong>Case-sensitive<\/strong> if you want to make the duplicate detection rule case-sensitive.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap7-screenshot-Select-Case-Sensitive.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable New Rule - Step 7 Screenshot: Select &quot;Case Sensitive&quot;\" class=\"wp-image-10421\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 8: <\/strong>check the box <strong>Exclude inactive matching records<\/strong> Select this option if you want the duplicate detection rule to consider only active records.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap8-screenshot-Select-Exclude-inactive-matching-records.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable New Rule - Step 8 Screenshot: Select &quot;Exclude inactive matching records&quot;\" class=\"wp-image-10422\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 9: <\/strong>Next, you must specify the record fields at <strong>Base Record Field<\/strong> and <strong>Matching Record Field<\/strong> so that the duplicate detection rule knows which fields to compare. In this example, you should choose to compare the email addresses.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap9-screenshot-Select-Record-Fields.webp\" alt=\"Net IT CRM Blog: Duplicate Detection in Dynamics 365 - Enable New Rule - Step 9 Screenshot: Select Record Fields\" class=\"wp-image-10423\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 10: <\/strong>Click on <strong>Sav<\/strong>e and <strong>Close<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap10-screenshot-Save-And-Close.webp\" alt=\"Net IT CRM Blog: Duplicate Detection in Dynamics 365 - Enable New Rule - Step 10 Screenshot: Save and Close\" class=\"wp-image-10424\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 11: <\/strong>Next, you'll see the screen with all the duplicate detection rules again &gt; <strong>Select<\/strong> the rule you just created.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"https:\/\/alistar.net\/wp-content\/uploads\/2025\/07\/Net-IT-CRM-Blog-Duplicatendetectie-van-Dynamics-365-Nieuwe-regel-stap11-screenshot-Select-New-Duplicate-Detection-Rule.webp\" alt=\"Net IT CRM Blog: Dynamics 365 Duplicate Detection - Enable New Rule - Step 11 Screenshot: Select New Duplicate Detection Rule\" class=\"wp-image-10426\"\/><\/figure>","protected":false},"excerpt":{"rendered":"<p>Dubbele records of gegevens zijn \u00e9\u00e9n van de grootste oorzaken van slechte datakwaliteit in een CRM database. In Microsoft Dynamics 365 kan u data \u2018schoon houden\u2019 via duplicatendetectie. U kan duplicatendetectieregels opstellen en activeren om dubbele records te detecteren of voorkomen. Als u bijvoorbeeld een nieuwe contactpersoon aanmaakt in Dynamics 365, dan wordt er op [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":18610,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[27],"tags":[564],"industrie-type":[],"interesses":[],"techologie":[],"alistar_language":[],"class_list":["post-18587","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-nl","tag-net-it"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How-to: dubbele data vermijden met duplicatendetectie van Dynamics 365 - Net IT CRM Blog<\/title>\n<meta name=\"description\" content=\"Met duplicatendetectie van Dynamics 365 kan u data schoon houden in uw database. 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