We need to develop a Multi Vendor Module for our e commerce website which is based on Opencart and has Drop Shipment as business model. We need following functionalities.
1. Order processing and billing workflow
1.1.1 Invoice generation
1.1.2 Bulk invoice generation
1.2 Invoice printing (with options available for Indian Taxation i.e. VAT & CST)
1.3.1 Pack update for shipments
1.3.2 Pack update for shipments in bulk via excel sheet
1.4.1 Generating manifest for all packed shipments
1.4.2 Generating manifest for some packed shipments via excel sheet
1.4.2 Generating manifest for some packed shipments via barcode scanner
1.5. Generating bill for manifest handed over to couriers
2. Updating returned shipments
2.1 Courier returns (RTO) & COD Returns
2.2 Customer initiated returns (wrong or damaged items)
3. Managing catalogue
3.1 Uploading of Products with Category specific details (which goes live only after Super Admin Moderation)
3.2. Editing/Modification in Product Details
4. Vendor Billing
4.1 Vendor Billing Cycle
4.2 Consolidated Reports (Sale, Return, Commission, Taxation)
5. Issue Resolution
5.1 History of Issues related to Vendor's Product
Along with these, we also need to integrate SMS and Email triggers on Order Status Changes which go the customer, Vendor and Super Admin.
Please provide us a bid only if you have significant experience in Opencart Module development and can fulfill all the above mentioned requirements.