---
title: "Errors - Microdeposits errors | Plaid Docs"
description: "Guide to understanding and troubleshooting Micro-deposits errors."
canonical: "https://plaid.com/docs/errors/microdeposits/"
---

Micro-deposits errors 
======================

#### Guide to troubleshooting micro-deposits errors 

#### BANK\_TRANSFER\_ACCOUNT\_BLOCKED 

##### The bank transfer could not be completed because a previous transfer involving the same end-user account resulted in an error. 

##### Common causes 

*   Plaid cannot send micro-deposits to verify this account because it has flagged the account as not valid for use. This can happen if a previous micro-deposit transfer to this account resulted in an ACH return.

##### Troubleshooting steps 

API error response

```json
http code 400
{
 "error_type": "BANK_TRANSFER_ERROR",
 "error_code": "BANK_TRANSFER_ACCOUNT_BLOCKED",
 "error_message": "bank transfer was blocked due to a previous ACH return on this account",
 "display_message": null,
 "request_id": "HNTDNrA8F1shFEW"
}
```