This document is intended to serve as a glossary of errors applicable to users of the content management system who will need this as an independent guide to understand errors that frequently occurs in the system. The phenomena of common errors are described below with screenshots which will be essential for easy understanding.
Errors Glossary
The following glossary displays Lists of various errors that may occur when operating the Admin Panel.
Concurrency Issue
When multiple users try to access and change data in the system concurrently, data integrity in the system may be compromised. Thus, when resources are shared or transactions are executed by multiple interactive users at the same time in an unrestricted or uncontrolled manner, it may lead to concurrency issues. So, access needs to be controlled to prevent these undesirable effects.
Concurrency Control Failure
Product, Order, Transaction, and Invoice are Concurrently Controlled Entities, where only one User can operate at a time. For example, if a User is trying to Edit a Product which is a concurrently controlled entity, and another User tries to simultaneously Edit that Product, then Concurrency Control Failure will occur and it will throw one User out of the system. So, if the entity a User is trying to operate on is concurrency controlled, it means that other Users may be trying to edit it simultaneously, but cannot.
Therefore, if a Customer is trying to Order a concurrently controlled entity like Product, the Product Stock Count will decrease automatically in the system while editing the Product. Other concurrency controlled entities such as Order, Transaction, and, Invoice will not allow being operated by multiple Users at the same time. If the Users try to operate within a concurrently controlled entity simultaneously, Concurrency Controlled Failure will occur.