Make small changes to the functionality of the site in php + html lines

Development of a web service for generating price lists for marketplaces in UkraineProject Description A simple web service (personal account) needs to be developed that will automatically generate price lists for various marketplaces in Ukraine based on one main procurement price list. The goal is to eliminate the need for me to manually create Excel files for each marketplace.Input Data There is one main Excel/CSV price list with procurement prices. It contains approximately: Article Name Brand Category Procurement Price Availability Product Code Barcode (if available) Other fieldsRequired Functionality1. Price List Upload Button Upload Price List Supported formats: Excel CSV After uploading, the system should save the data.2. Price List Generator There should be a list of marketplaces. For example Rozetka Epicenter Prom Kasta Hotline Allo MAUDAU EVA Bigl.ua (the list will expand) Next to each, a button Generate or better if it updates automatically via API every hour3. For Each Marketplace Separate rules with markups according to their commission tables For example Rozetka its own columns its own order its own field names its own price formula Epicenter other fields other columns Prom different template that is, each marketplace has its own export template.4. Price Formation A rules editor needs to be created. For example Procurement × 1.15 or Procurement + 800 UAH or Procurement × 1.18 + 200 UAH or if the price is up to 5000 UAH then markup 20% from 5000 to 15000 15% over 15000 10% that is, everything should be according to their tables5. Additional Rules Ability to: hide out-of-stock items hide certain brands hide categories exclude items6. Result The output should be a file Excel or CSV that can be immediately uploaded to the marketplace, or better if it updates itself via a linkInterface As simple as possible. For exampleMain Price List [Upload] --------------------- Rozetka [Generate] --------------------- Prom [Generate] --------------------- Epicenter [Generate] --------------------- Hotline [Generate]Desirable That all templates can be edited. For example I want to change Column A Column B add a new column delete a column change the name without contacting a programmer.Admin Panel Needs: list of marketplaces templates markup rules generation log history of uploaded price listsStack Not critical. Can be: Laravel PHP Python (Django/FastAPI) Node.js The main thing is that the code is understandable and can be expanded.In the Future In the future, it is planned to add: automatic price updates marketplace APIs stock synchronization XML generation YML generation automatic price list uploads support for dozens of marketplaces multiple suppliers different currenciesWhat is Required from the Performer Experience working with Excel/CSV. Understanding of marketplace price formats. Ability for further support and development of the project. Indicate the estimated cost, deadlines, and development technology.I would also add one important requirement To make the system as universal as possible, so that in the future it can support 100+ marketplaces and 100+ suppliers without changing the architecture. This will significantly simplify the scaling of the project and allow its development without a complete overhaul.

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Changes need to be made to 3 (three) different forms, calculators, and data entry pages on the website according to the technical specifications. The implementation of the calculators and pages is required in two languages. It is possible to refine the existing forms and calculators or create new ones if that is easier for execution. The technical specifications will be provided. During the execution of the task, minor additions or clarifications regarding changes to the calculators or forms (templates) may be made.

When placing an order, when the buyer selects the country "Ukraine," the system substitutes the delivery method from the "Rest of the World" zone (Self-pickup (M)) instead of the "Ukraine" zone (Self-pickup (U)). The shipping plugin support has already tested this hypothesis: they deactivated the UA Shipping plugin, turned off all its delivery methods, and left only the standard WooCommerce methods — The problem remained even after this, meaning the cause is not in the shipping plugin, but somewhere in the site settings.

Need to: Create a website – online store in Ukrainian (subsequently multilingual). The engine is not critical, the most important thing is that the admin panel is user-friendly.Consists of: - Main page- Catalog with categories, subcategories, and product cards (with the ability to add both categories and subcategories): - Blog- Text (purely informational) pages:“Who we are” or “ABOUT US”Payment and delivery, Exchange and returns, Privacy policy, Public offer, Warranty.Contacts+ Admin panel 2. Register hosting 3. Purchase and link a domain4. Install a favicon5. Register Google Analytics and add the website 6. Create and connect a Telegram chatbot for order notification. 7. SEO. It is necessary to provide fields for each category and product: HTML title, meta keywords, meta description, h1, SEO text. The design can be template-based.