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Most Relevant Info For All Categories <<Previous  Next>>   11 - 20 of 468 items
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 11.  Error 13: "The merchant login ID or password is invalid or the account is inactive."  
 12.  Does Authorize.Net® support international transactions?  
 13.  What is Test Mode and how do I turn it off and on?  
 14.  How can I start accepting a new credit card type such as American Express or Discover?  
 15.  How do I refund a credit card transaction?  
 16.  Who is my Merchant Service Provider (MSP)?  
 17.  I received a declined transaction but the customer claims they were charged.  
 18.  How do I obtain my API Login ID and Transaction Key?  
 19.  Integration Methods Explained  
 20.  Error 103: This transaction cannot be accepted.  
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