invoice merge one to another error

I have a web base software running over my localhost. I am haveing problem with create invoice. Problem are as follow:

Problem 1. User 1: creating an invoice with product X, Y, Z and User 2 : creating an invoice A,B,C.

Problem is when both user saving this invoice, User 1 or user 2 products merge with user 2 or user 1 products and the invoice is like that, X,Y,Z,A,B,C.

I need individuals user should print individuals, that products should merge with another user.

Problem 2: The invoice is saving in database in two difference table. one is invoice and another is invoice details. Invoice saving in invoice details table properly but some time taking wrong saving in invoice table.

Details will be provide through team viewer or skype.

Skills: Database Administration, MySQL, PHP, Software Testing, Website Management

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About the Employer:
( 12 reviews ) Dhaka, Bangladesh

Project ID: #5378774

7 freelancers are bidding on average $76 for this job


Hi, Please provide link to your software because if would be more clear and easy to understand and solve problem if I can take a look at code and software. I am working as a freelancer website designer and develo More

$105 USD in 3 days
(36 Reviews)

Hi, I'm very interested helping you merging your invoices, I have more then 7 years of experience in SQL and database administration, modeling, optimizing and manipulating, please do not hesitate to check my portfoli More

$100 USD in 3 days
(26 Reviews)

Hi Buyer Hope doing well, Extremely Interested understand what you are saying.We are interested to do job for you we have the ability to win this project and your trust with yours maximum satisfaction. Why Cho More

$45 USD in 3 days
(17 Reviews)

Hello! We have read your requirements and we will do this job for you. We have done similar kind of job before also. We have 100% completion rate and trust me, we are going to give you quality work and we are sure afte More

$80 USD in 3 days
(27 Reviews)

Hello, I read your requirements. I can do this. Please contact me for discussing the project . Thanks

$30 USD in 3 days
(5 Reviews)

hello, first of all sry for high bid but this task is really related to 100$ , i can resolve these both problems easily n few houres can start now, kindly award me the project and give me the site link

$105 USD in 2 days
(4 Reviews)

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