Have you shopped lately through PayPal? I have been trying to order lingerie for my girlfriend’s birthday with no success. Every time I think the transaction is sealed, I receive paypal error code 10501. I do not understand the meaning of the configuration and despite several attempts to repeat the process of purchasing an item; I am confronted by the same error. When I first sought the intervention of paypal by calling their support team, they told me to go through paypal identity verification which involved furnishing them with the account opening details for my paypal account. Paypal has not adequately given an explanation to the error always telling you to go through paypal identity verification. I have never understood why but their lack of explanation maybe due to their lack of understanding whether they were blocking a genuine transaction or fraud. I know they have to take precaution especially when many people get scammed everyday, ending up paying for things they never receive. However, when I sought reviews online, there were conflicting definitions of the paypal error code 10501. For instance, in one review, they claimed it was an invalid merchant configuration while another said it was a billing error message to notify me that the agreement was not signed. However, I am told this problem is too common when there is reason to suspect the transaction could be a fraud. If you encounter it too, do not cry out loud. Paypal maybe taking precaution to prevent you from losing money to a untrustworthy merchant. If you repeat the paypal identity verification process and you are not still able to purchase what you want online because of the error, give it up.