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Square is a leading FinTech API provider that offers a comprehensive suite of tools for handling online payments, including checkouts and payment processing. It is widely used by businesses to facilitate seamless transactions and manage promotions effectively.
When using Square's API, you might encounter the INVALID_PROMOTION
error during the checkout process. This error indicates that the promotion code applied to a transaction is either invalid or not applicable, preventing the transaction from proceeding.
The most common cause of this error is an incorrect or expired promotion code. Ensure that the code entered is correct and still valid.
Another possibility is that the promotion does not apply to the items in the cart or the transaction conditions. Check the promotion's terms and conditions to verify its applicability.
Double-check the promotion code for any typographical errors. Ensure that the code is active and has not expired. You can manage and verify promotion codes through Square's Promotions API.
Review the promotion's terms and conditions to ensure it applies to the current transaction. Consider factors like minimum purchase requirements, applicable items, and customer eligibility.
If the promotion details are incorrect, update them in your Square dashboard. Navigate to the Square Dashboard, locate the promotion, and make necessary adjustments.
For more detailed guidance, refer to Square's official Developer Documentation. If the issue persists, consider reaching out to Square's Customer Support for further assistance.
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