> ## Documentation Index
> Fetch the complete documentation index at: https://docs.synctera.com/llms.txt
> Use this file to discover all available pages before exploring further.

# What are the possible errors I might get when attempting to issue a card for an end-customer?

> There are myriad of reasons. The list is always subject to change.

In general, HTTP 400-499 are client side errors, that require you to remediate before reattempting the request. 500-599 constitutes server side errors, that can be retried later.