Re: I am trying to customise my own invoice on quickbooks by creating a docx but only one line on...
Hello there, hill12.
I would like to verify if you tried downloading the sample file that QuickBooks provides and comparing it to your customised template? You can check that out to compare and will help you correct the issue.
In QuickBooks Online, click Gear icon and select Custom Form Styles.
From the drop-down arrow beside New style, select Import style.
Click on the hyperlinked Download a sample.
Open the downloaded the file to view the sample sales forms.