How to add fields after last name and after user info section in donation form?

Hi there,

You can easily do that with our Form Field Manager addon but you can also do it without premium plugins.

We have a proof-of-concept snippet that allows you to add a phone number field and more here: https://github.com/impress-org/givewp-snippet-library/blob/master/donors/add-donor-meta.php

If you need assistance implementing custom PHP code on your website we have this guide:

https://givewp.com/documentation/resources/adding-custom-functions-to-your-wordpress-website/

Please note that this code snippet is provided as an example of how you can extend GiveWP with code. It’s up to you to implement and customise to your liking. We cannot provide support for custom code on your website, only the code that we create and distribute.