When you make a mail merge in a Word2010 document, the recipient list may have duplicate recipients for some reason. Users can display duplicate records through the Find Duplicate recipients feature, as described in the following steps:
Step 1th, open the Word2010 document window and switch to the mail ribbon. Click the Edit recipient list button in the Start Mail Merge group, as shown in Figure 1.
Figure 1 Click the Edit recipient list button tip: If the Edit recipient list button is unavailable, you need to click the Select Recipient button in the Start Mail Merge group and select the appropriate recipient list. Step 2nd, open the Mail Merge Recipients dialog box, and click the Find duplicate recipients hyperlink in the Adjust Recipient list area, as shown in Figure 2.
Figure 2 Click the Find duplicate recipient Hyperlink Step 3rd, in the Find Duplicates dialog box that opens, if duplicate records exist in the recipient list, they are displayed in the list of duplicates, and empty results are returned if no duplicate records are present, as shown in Figure 3.
Figure 3 Find Duplicate Recipients dialog box