I am trying to implement a Basic CRM in SharePoint. Although there are a lot of Add-Ins for SharePoint I want to do it by myself. So I made a sub-site and added some lists for the different modules like Companies, Contact, Leads, Projects. So unfortunately our Contacts are assigned to the different Projects. So, if a contact is assigned to Project 1 and this project defines some contact-specific columns, those columns should be displayed/added tho the contacts-list, but only for this contact. Not for the others.
I think this is not possible but it's worth a question.
So if this is not possible I could create a contact-list for every project and made a search view to search all these lists across the projects.
Perhaps you have some advices for me.
Thanks to you.