Ribbon Customization -Hide ‘Add Existing’ button in Dynamics CRM 2011

How to hide the ‘Add existing’ button on the Contact Associated view on the Account Entity. When you open an Account entity record and click on ‘Contacts’ in the left navigation bar of the entity. you can see’Add New Contact’ and ‘Add Existing Contact’ buttons. 

Follow the bellow steps

1. Create a Solution & Add Contact entity (Add whatever the entity button you want to hide)
2. Export the solution
3. Unzip and Edit the Customizations.xml file
4. Now we need to fine the Id of the ‘Add Existing’,Add New’ Buttons  For this I opened the ‘contactribbon.xml’ which is available under ..\\sdk\samplecode\cs\client\ribbon\exportribbonxml\exportedribbonxml( this location depends on the Sdk installation directory  on the file system)
5. I found the ids as shown  below from the contactribbon.xml
6. 
7. Add  the below code  in the RibbonDiffXML
8. Replace the <CustomActions /> with 

9. <CustomActions>
     <HideCustomAction Location="Mscrm.SubGrid.contact.AddExistingAssoc" HideActionId="Mscrm.SubGrid.contact.AddExistingAssoc.HideAction" />
     <HideCustomAction Location="Mscrm.SubGrid.contact.AddExistingStandard" HideActionId="Mscrm.SubGrid.contact.AddExistingStandard.HideAction" />
   
   </CustomActions>
   

• Save the file.
• Replace the customizaions.xml file in your zip solution with this file.
• Import the solution and publish the changes.

You are done with it!