Can’t add merge code to existing block of merge codes

Hi @John Michael

Thank you for reaching out to the Microsoft Q&A forum. 

I understand that the document opens and works fine on both Mac and PC, but it must be frustrating that adding a new merge field in the footer doesn’t work as expected. 

To better understand your issue and provide more accurate guidance, could you please share the following details: 

-Can you successfully insert a new merge field in other parts of the document, such as the body (not the footer)? 

-Have you tried right-clicking an existing merge field and selecting Toggle Field Codes in the footer to check if it allows editing? 

-Have you noticed this issue before, or did it start happening only recently? 

-Could you please try creating a new blank document and see if you can insert merge fields in the footer there? This will help determine if the issue is specific to the original file. 

-Which version of Microsoft Word are you using on both Mac and PC, and which macOS version are you running on your Mac? 

-Are you signed in with a personal account or a work or school account? 

Please understand that our initial reply may not always immediately resolve the issue. However, with your help and more detailed information, we can work together to find a solution. 

I look forward to your update. 

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