Build/Add Up More Feature on exiting system CRM with Yii2

No Feature 1 Invoice Management 2 ○ Client 3 ○ Destination 4 ○ Product client use 5 ○ Amount 6 ○ Discount 7 ○ Status invoice (send out, first time, Paid, Unpaid) 8 ○ Invoice (edit to set discount sth, dowload invoice ..) 9 ○ Paid (tick) 10 ○ Receipt (Send out to guest to confirmed payment) I will show ezecom email sample 11 This should connect from contract after sales confirmed 12 Invoice send to client, should has 1 time reminder 13 Feature 14 ○ Customize invoice (by product) 15 ○ Invoice/ Receipt send out link with our email 16 Report 17 Monthly sales confirmed - Revenue (export as IIF, PDF, Excel) 18 (This should have period selection (today, 7days, month, custom period) 19 Monthly Quotation Issue 20 Customer profile - Filter by nationality or city - business type Lead profile 21 Monthly Payment Collection 22 Membership 23 Membership profile (Customer profile) 24 Membership fee 25 Membership gym activity tracking 26 Personal Training 27 Group Gym 28 Referral Program / commission 29 Sponsor Program 30 Gym courses management 31 Option of gym course 32 Video of training 33 Trainer Profile 34 Saving Point Program 35 Event & Training Program 36 Posting 37 Registeration 38 Blog Post 39 Activity Alert notification 40 time to drink water.... 41 "Email Template (Subject, Body)" 42 Invoice Template 43 Receipt Template More details : https://docs.google.com/spreadsheets/d/1kn3ipAJYhNbUI5_1CVPgOUKJiVo4ReEdDrU6h-_QECo/edit#gid=0