QuickBooks keeps updating its software and features from time to time so as to provide a smooth interface to it users.  Most of the banks readily accept and work as per the new updates of the QuickBooks. But if the connection is not yet accepted by your Financial institutions, then Error 377 might hamper your Quickbooks online application. 

Reasons for the occurrence of the Error 377:

  • Financial institution not connected with the updates of QB online. 
  • Bank connection not updated. 

How to fix QuickBooks Error 377?

Solution 1: Updating the bank connection in QuickBooks online. 

  • QB online Error 377 can be fixed by updating the connection of the bank in QuickBooks online. 
  • You need to set up the new connection for your bank by going to the update now form the banking page, for this:
  • You need to click on Banking from the left pane. 
  • Now, you need to select ‘Banking’ for further action.
  • From the right side of the banner, you have to click on Update. 

Solution 2: Using web connect to download the Bank Transactions. 

  • First, you have to login to your online banking from the internet explorer. 
  • From the field of range, select the date range and then download the transaction in the .qbo format. 
  • Now, you need to login to your QBO account using your default browser and have to make a click on Banking option under the tab of banking. 
  • From the drop down of Update, you have to choose the option of File upload, 
  • You have to make a click on ‘Upload transactions manually’, if you are connecting your account for the first time. 
  • Now, you will have to click on Browse and then have to select the downloaded file.
  • Now, you need to select the account from the QuickBooks account’s drop down list on which you have to upload the data. 
  • Click on the tab of Add new to set up a new account. 
  • Next, you have to make a click on the gear icon and then select the option of Import data under the tab of Tools. 
  • You need to select ‘Bank data’ and then enter next. 
  • To accomplish the task, you have to click on ‘Let’s go’.

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