Uninstall Duplicate Check from Salesforce Lightning
Step 1 Remove the Disable Duplicate Check buttons
Remove buttons from Lead Object
| 1 | Navigate to the Salesforce 'Setup' page and in the 'Quick Find' search box type 'Object Manager'. Or you can manually find it under Platform Tools - Objects and Fields - Object Manager |
| 2 | Find the 'Lead' Object or type it manually in the search box and then click on it. |
| 3 | Navigate to the 'Page Layouts' |
| 4 | Click on 'Lead Layout' |
| 5 | Remove the 'Disable Duplicate Check' field from the Leads Page Layout.  |
| 6 | In the buttons area, remove the 'DC Check' and 'DC Convert' buttons from the Page Layout. |
| 2 | Click 'Save' |
Remove buttons from Account Object
| 1 | Navigate to the Salesforce 'Setup' page and in the 'Quick Find' search box type 'Object Manager'. Or you can manually find it under Platform Tools - Objects and Fields - Object Manager |
| 2 | Find the 'Account' Object or type it manually in the search box and then click on it. |
| 3 | Navigate to the 'Page Layouts' |
| 4 | Click on 'Account Layout' |
| 5 | Remove the 'Disable Duplicate Check' field from the Accounts Page Layout. |
| 6 | In the buttons area, remove the 'DC Check' and 'DC Convert' buttons from the Page Layout. |
| 2 | Click 'Save' |
Remove buttons from Contact Object
| 1 | Navigate to the Salesforce 'Setup' page and in the 'Quick Find' search box type 'Object Manager'. Or you can manually find it under Platform Tools - Objects and Fields - Object Manager |
| 2 | Find the 'Contact' Object or type it manually in the search box and then click on it. |
| 3 | Navigate to the 'Page Layouts' |
| 4 | Click on 'Contact Layout' |
| 5 | Remove the 'Disable Duplicate Check' field from the Contact Page Layout. |
| 6 | In the buttons area, remove the 'DC Check' and 'DC Convert' buttons from the Page Layout. |
| 2 | Click 'Save' |
Step 2 Remove the DC Merge buttons
Remove the DC Merge button from Lead Object
| 1 | Navigate to the Salesforce 'Setup' page and in the 'Quick Find' search box type 'Object Manager'. Or you can manually find it under Platform Tools - Objects and Fields - Object Manager |
| 2 | Find the 'Lead' Object or type it manually in the search box and then click on it. |
| 3 | Navigate to the 'Search Layouts' |
| 4 | Click on the arrow at 'List View' then 'Edit' |
| 5 | Remove 'DC Merge' from 'Selected buttons' |
| 6 | Click 'Save' |
Remove the DC Merge button from Account Object
| 1 | Navigate to the Salesforce 'Setup' page and in the 'Quick Find' search box type 'Object Manager'. Or you can manually find it under Platform Tools - Objects and Fields - Object Manager |
| 2 | Find the 'Account' Object or type it manually in the search box and then click on it. |
| 3 | Navigate to the 'Search Layouts' |
| 4 | Click on the arrow at 'List View' then 'Edit' |
| 5 | Remove 'DC Merge' from 'Selected buttons' |
| 6 | Click 'Save' |
Remove the DC Merge button from Contact Object
| 1 | Navigate to the Salesforce 'Setup' page and in the 'Quick Find' search box type 'Object Manager'. Or you can manually find it under Platform Tools - Objects and Fields - Object Manager |
| 2 | Find the 'Contact' Object or type it manually in the search box and then click on it. |
| 3 | Navigate to the 'Search Layouts' |
| 4 | Click on the arrow at 'List View' then 'Edit' |
| 5 | Remove 'DC Merge' from 'Selected buttons' |
| 6 | Click 'Save' |
Step 3 Uninstall Duplicate Check from Salesforce
| 1 | Navigate to Salesforce Setup - Platform Tools - Apps - Installed Packages  |
| 2 | Find 'Duplicate Check for Salesforce' and click 'Uninstall' |
| 3 | The uninstall will run in the background, and it may take some time till it finishes. |
| 4 | Thank you for using Duplicate Check! |