Hi pricestruck
Thank you for your post. Welcome to the MYOB Community Forum.
At the moment, the only way to edit the shipping details is through the customer's details. In that case, you will need to create a customer as well. I do think it is a great idea to be able to edit when creating an invoice. Our Product Ideas Board is open to feature requests. You may post your idea here so others can vote for it as well.
Please feel free to post again. I'm happy to assist further.
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