Hi Pomina,

When you convert leads, Salesforce creates accounts, contacts, and, opportunities using information from the leads you’re converting. Salesforce moves any campaign members to the new contacts, and the leads become read-only records. If existing accounts and contacts share the names specified on the leads, you can choose to update the existing accounts and contacts. Salesforce adds information from the lead into empty fields; Salesforce does not overwrite existing account and contact data.

All open and closed activities from the leads are attached to the accounts, contacts, and opportunities. You can assign the owners of these new records, and schedule follow-up tasks. When you assign new owners, only the open activities are assigned to the new owner. If you have custom lead fields, that information can be inserted into custom account, contact, or opportunity fields. Your admin can also set up your custom lead fields to populate custom account, contact, and opportunity fields automatically. You can’t view converted leads unless your admin has assigned you the "View and Edit Converted Leads" permission. However, converted leads do appear in lead reports. Salesforce updates the Last Modified Date and Last Modified By system fields on converted leads when picklist values included on converted leads are changed.

Once converted, a lead record is no longer searchable, unless your admin has assigned you the "View and Edit Converted Leads" permission. The new account, contact, or opportunity record created from the converted lead is searchable.

Please mark it as solved if this reply is helpful.

Thanks,
Rakesh