# Sandbox Error listing transactions **URL:** \ **Category:** Transfers\ **Created:** [January 15, 2021, 2:57am UTC](https://discuss.dwolla.com/t/sandbox-error-listing-transactions/6635 "2021-01-15T02:57:23Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![shreya](https://sea2.discourse-cdn.com/dwolla/user_avatar/discuss.dwolla.com/shreya/32/2154_2.png) [@shreya](https://discuss.dwolla.com/u/shreya)\ **Post date:** [January 20, 2021, 10:19pm UTC](https://discuss.dwolla.com/t/sandbox-error-listing-transactions/6635/2 "2021-01-20T22:19:06Z")
Hi @sf500 – thanks for posting! We see that error occasionally in Sandbox whenever there’s a high load of requests and our service has an error. I would like to learn how you’re using the Sandbox environment from a testing perspective, and see if that has anything to do with there being a frequent occurrence of such errors. We generally recommend not using Sandbox as a part of automated tests that run often. If that isn’t an option, you could implement retry logic or build a fake Dwolla to test against similar to this blog post: [https://www.dwolla.com/updates/building-open-source-software/](https://www.dwolla.com/updates/building-open-source-software/) Hope that helps. Do let me know! --- _[View the full topic](https://discuss.dwolla.com/t/sandbox-error-listing-transactions/6635)._