1, With your PrestaShop admin panel, go to Shop Parameters > Customer Settings section. #

2, Here, you can manage Enable B2B mode, Ask for birth date, Enable partner offers. #

• For Activate or deactivate B2B mode you need to use Enable B2B mode Field.
• For the Date of birth field, you need to use Ask for birth date.
• For check box for affiliate links to use Enable partner offers.

3,  For Enable partner offers you need to first enable Partner offer With your PrestaShop admin panel, go to Customers  > Customers section. #

4,  Click on Set required fields for this section and select Partner offer than click on save button. #