I have purchased a simple crm in php - https://codecanyon.net/item/pipex-crm/29361195?_ga=2.132648006.912020436.1653554456-1957812318.1592226424
I need to make some corrections in it:
1.In adding a company you need to add a NIP field, the value must be unique, you cannot add a company with the same nip.
2.Currently a company can have one address, I need the ability to add multiple addresses
3. there are 3 user levels admin, manager and normal user. I need to add the possibility of assigning users to managers. Additionally, user can see only companies which he added, and manager can see companies added by him and his users.