I need more extended information in Coupon Codes fields. How to make it?

I'm importing CSV file with my codes in Gift Certificates / Codes. The problem is that actualy I want to provided to my buyers not the coupon code, but some kind of unique information instead. Such as weblink or any activation code and password. And when I type this information it becomes cut. As I understood there is some king of symbols number restriction in the codes field. 32 symbols max or something like that.
How can I make it correctly?

Hello, you can edit the coupon code field within the database


This will update the coupon_code field to 255 characters. Note, you will need to change #_ to your database prefix.

Thank you for reply!
Next question, I'm using tag {vouchers} to write information in email, not only on the picture in attachement. What I see inside:
Gift Certificate: my information
Value: $10.01
I need to change or remove "Gift Certificate" and I need to remove whole 2nd row Value: $10.01 from email. Can I edit tag, or something else to show only "my information"? And how to make it?

Hello,

You need to edit the code to do this:
www/administrator/components/com_awocoupon/helpers/estore/estoregiftcerthandler.php

It is created in the variable text_gift, search for that and edit it.