# Unable to verify a bank account (micro-deposit)

**URL:** <https://discuss.dwolla.com/t/unable-to-verify-a-bank-account-micro-deposit/8934>\
**Category:** Funding Sources\
**Created:** [April 28, 2023, 5:22pm UTC](https://discuss.dwolla.com/t/unable-to-verify-a-bank-account-micro-deposit/8934 "2023-04-28T17:22:47Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![davidsonsns](https://sea2.discourse-cdn.com/dwolla/user_avatar/discuss.dwolla.com/davidsonsns/32/3449_2.png) [@davidsonsns](https://discuss.dwolla.com/u/davidsonsns)\
**Post date:** [April 28, 2023, 5:22pm UTC](https://discuss.dwolla.com/t/unable-to-verify-a-bank-account-micro-deposit/8934/1 "2023-04-28T17:22:47Z")

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[I’m unable to simulate a bank account micro-deposit failed verification attempt](https://developers.dwolla.com/guides/sandbox/funding-sources#test-micro-deposit-failed-verification-attempts). It keeps saying:  
`The requested resource was not found.` BUT, the founding source was successfully added and is listed on the sandbox dashboard.

For some reason this is happening only for this account in particular. Our QAer is re-testing this flow and got this.

Data:

- Environment: **Sandbox**
- Customer ID: **2fbe2ad6-5155-4bd3-a505-924f8758f01c**
- Founding Source ID: **dfcc91b8-b7d2-4b7e-855f-d71d0ec6f05b**
- Routing/Account number: **091300023**

We’d like to double-check if we’re not covering some edge case. Please let me know if I can provide more information.

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**Author:** ![spencer](https://sea2.discourse-cdn.com/dwolla/user_avatar/discuss.dwolla.com/spencer/32/2143_2.png) [@spencer](https://discuss.dwolla.com/u/spencer)\
**Post date:** [May 1, 2023, 5:00pm UTC](https://discuss.dwolla.com/t/unable-to-verify-a-bank-account-micro-deposit/8934/2 "2023-05-01T17:00:14Z")

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> [@davidsonsns](#):
>
> It keeps saying:  
> `The requested resource was not found.`

Hi @davidsonsns , Looking at our API request and response logs and there seems to be quite a bit of requests within a short time span to create a funding source, initiate micro-deposits, and verify micro-deposits. I’m wondering if there is some contention in the Sandbox with the volume of requests that is causing issues with the state of the resource. I passed this on to our engineering team for further investigation.

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**Author:** ![spencer](https://sea2.discourse-cdn.com/dwolla/user_avatar/discuss.dwolla.com/spencer/32/2143_2.png) [@spencer](https://discuss.dwolla.com/u/spencer)\
**Post date:** [May 1, 2023, 5:04pm UTC](https://discuss.dwolla.com/t/unable-to-verify-a-bank-account-micro-deposit/8934/3 "2023-05-01T17:04:26Z")

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@davidsonsns , we believe this is due to the sequence of requests where the Funding Source is being removed which removes micro-deposits. When we receive the request to verify, which is causing the 404, the funding source had already been removed.

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**Author:** ![davidsonsns](https://sea2.discourse-cdn.com/dwolla/user_avatar/discuss.dwolla.com/davidsonsns/32/3449_2.png) [@davidsonsns](https://discuss.dwolla.com/u/davidsonsns)\
**Post date:** [May 9, 2023, 6:20pm UTC](https://discuss.dwolla.com/t/unable-to-verify-a-bank-account-micro-deposit/8934/4 "2023-05-09T18:20:34Z")

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Got it! Thanks for your help to understand this.