Custom field slug url

<p style="box-sizing: border-box; margin: 0px 0px 16px; padding: 0px; color: #666666; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 1.5; background-color: #fafafa;">good evening. please i want to change the members directory slug from what i set (example ”/members/) to a conditional slug based on a custom field.</p> <p style="box-sizing: border-box; margin: 0px 0px 16px; padding: 0px; color: #666666; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 1.5; background-color: #fafafa;">detailed scenario: when a user logs in, and tries to access his/her profile or group? his/ her base slug will be based on his/her company name filled in the registration.(example: mydomain.com/vibethemes/Derrick) assuming i filled in vibethemes as my company name.</p> <p style="box-sizing: border-box; margin: 0px 0px 16px; padding: 0px; color: #666666; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; font-size: 14px; line-height: 1.5; background-color: #fafafa;">hpw do i achieve that? tried to read on some tweaks but my php knowledge is to limted and i want to prevent breaking the site by my tweaks</p>

<p style="text-align: left;">so what is your advice in order to do that which i need. just tell me what to do.</p> tell me more about this category "customisation" and what i need to do.