How to Add Custom Validations Before Order Placement in Magento 2

Commonly, storekeepers need to play out some custom approval before the request position during checkout. These are the approvals set when clients click Spot Request button and a few approvals, limitations or confirmations should be set preceding put in the requests.

Here, we'll discuss the strategy to add custom validations before order placement in Magento 2. For instance, the storekeeper would need to check the request before it is put by means of OTP. The confirmation occasion is set off before the snap of the "Spot Request" button. Also, similar to this model, you can run the underneath code to set off any custom approval before the request is set!

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