Pine Invoice

----Invoice--Item---
1.The item name field should have a maximum limit of 25 characters.
2.The Description field should have a maximum limit of 150 characters.
3.The Item field should have a maximum of 6 characters.
4.The price filed should have a maximum of 10 characters.
5.The Discount filed should have a maximum of 10 characters.
----Invoice --Customer--
6.The company name and contact person fields should have a maximum limit of 50 characters each.
7.The email ID field should have a maximum limit of 50 characters.
8.When the invoice date or payment date is changed, the payment terms should also update accordingly.