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ELEX Stamps.com Plugin Authentication Failure

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Customer :

I’m trying to process an order online and my plugin keeps saying my stamps.com authentication has failed. There is money in my account the package is straight forward (just a priority mail package under 2lbs in a 12x9x3 box) worked two days ago and now – not so much.

Support :

Authentication failed error usually appears when the User Id and the password is not correct in the plugin settings

Kindly check the User Id and password.

In case, if the problem persists please contact Stamps.com support to check the details.

Previous When someone adds a product to their cart, with a quantity of 1, the rate was being calculated. But if we changed the product quantity to 2, the rate was doubled
Next For a single item it is fine but for multiple items, the charge is too high especially for international orders
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