Yes, you can add the fact box for both header and lines in Page 50. For lines, just make sure you use the correct ProviderID in your part page properties.
Yes, you can add the fact box for both header and lines in Page 50. For lines, just make sure you use the correct ProviderID in your part page properties.
Answers
Can I use these values on header page like purchase line subpage?
If you want to store the values in the table, then create the adequate fields and use the same logic as page 54.