When orders are received invoices are generated. Invoices can be searched by clicking on 'Invoices' in the left of the Acquisitions page.
After searching, your results will appear to the right of the search options.
From the results you can click the 'Details' link to see the full invoice or 'Close' to note that the invoice is closed/paid for.
If you're allowing the uploading of acquisitions files with the AcqEnableFiles preference you will see the option to manage invoice files next to the link to 'Go to receipt page'
To see or attach new files click the 'Manage invoice files' link
From here you can find a file to upload and/or see the files you have already attached.
From the invoice search results you can also merge together two invoices should you need to. Simply click the checkbox to the left of the invoices you would like to merge and click the 'Merge selected invoices' button at the bottom of the page. You will be presented with a confirmation screen:
Click on the row of the invoice number you would like to keep and it will be highlighted in yellow. Enter any different billing information in the fields provided and click 'Merge'. The two invoices will become one.