This project was part of an optimisation effort to allow users to enable stock notifications for specific products.
Business case was to increase urgency and fear of missing out in users and purchase products as soon as they're back in stock, this way increasing conversion rates.
The process
I started outlying all possible edge cases and scenarios for different states of product stock availability, which in this case were:
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Specific Colour is Out of Stock
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Specific Size is Out of Stock
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Product is in Stock but specific size is Out of Stock



You can see documented all components for the "Add to Bag" button, "Enable notifications" component and "Error Messaging" component.
I have worked on the first ideation of user flows, wireframe and documentation and on the second iteration of the high fidelity designs when I have adapted the old design to match the re-design, as I have shown in the Mobile App UI tab.