How to record more than 350 Character in DFF fusion AR Cloud ?

Summary

How to record more than 350 Character in DFF fusion AR Cloud ?

Content

Hello 

This is the business requirement , we need to store QR code string in DFF which is greater than 350 Characters
We are using Oracle AR Fusion Cloud . We need to store QR code string in a DFF and further use this to printing on our Customer invoices as QR Image. QR code to be stored against each AR transaction Invoice

But as DFF value set limit is Max. 150 Characters we are unable to update the entire QR code String.

Can anyone suggest a better way to store the QR string or increase the DFF length.