Invoicing - inventory - eshop application- social media

We would like make for us a complete package of high level digital upgrade.
this project concern the one of 2 business we running in Greece who trading industrial parts and provide industrial services.
Before you gave me an offer you need to fully understand our requirements and clarify the Greek law of taxes and invoicing
I provide you the necessary requirements . Any suggest is accepted.

SALES
ISSUANCE OF INVOICE - SHIPPING NOTE
ISSUE OF SHIPPING NOTE (TO CUSTOMER)
ISSUANCE OF INVOICE FOR PROVISION OF SERVICES
OFFER ISSUE
CREDIT INVOICE (TO CUSTOMER)
INVOICE SHIPPING MILITARY(TAX EXCEPTIONS)
SERVICE INVOICE MILITARY(TAX EXCEPTIONS)
CREDIT INVOICE MILITARY(TAX EXCEPTIONS)
INVOICE - SHIPPING NOTE
INVOICE FOR THE PROVISION OF SERVICES E.E


PURCHASES
INVOICE AND SHIPPING NOTE
INVOICE FOR PROVISION OF SERVICES
CREDIT INVOICE
SHIPPING NOTE
RETURN FORM
INVOICE SHIPPING NOTE EU
INVOICE FOR THE PROVISION OF SERVICES E.E
INPUT ALL NATURAL EXPENSES (RENTAL, FUEL, TAXES)
CALCULATION OF SALARIES
TELEPHONE EXPENSES, INTERNET


PRODUCTS
DESCRIPTION
FAMILY OF SPECIES
MEASUREMENT UNIT
VAT CLASS
VAT exemption
SUPPLIER
SPECIFICATION
TYPE
BRAND
WEIGHT
BILLING POLICY
ALTERNATIVE CODES
EXTENDED CATEGORIES
CREATE UNLIMITED MEASUREMENT TYPES
EASY SEARCH
ADDING PHOTOS
SHELF


SERVICES
DESCRIPTION
MEASUREMENT UNIT
VAT CLASS
VAT exemption



ADDITIONAL FUNCTIONS REQUIRED
MY DATA CONNECTION(GOVERNMENT TAX SYSTEM)
IMPORTING AND EXPORTING FILES VIA EXCEL
ITEM TABS
MOVEMENT TABS
CONNECTION WITH ESHOP
SENDING INVOICES etc BY EMAIL
MANAGING SOCIAL MEDIA THROUGH THE APP
GENERATE CATALOGUE


eshop-site
SITE-ESHOP CONSTRUCTION
FREIGHT CALCULATION
SYNCHRONIZATION PRODUCTS VIA APPLICATION