The max_renew_date field (which is enabled on the My Account > Loans Details page out of the box) is defined in the Loans Detailed Display mapping table under the OPAC via Primo subsystem in the Primo Back Office. To also display this field on the My Account > List of Loans page, you must swap it for one of the six existing columns. If the max_renew_date field is empty, the system will not display it.
In addition, you can customize the display text and provide localization in the Front End by modifying the following code in the Loans List Labels code table under the OPAC via Primo subsystem in the Primo Back Office:
default.loans.max_renew_date – Maximum renewal date: