When we talk about a “retrieval error,” we are referring to a situation where a process or system encounters difficulties or problems when attempting to retrieve specific information or data. This error can occur in various contexts, whether in IT, logistics, or other fields where data needs to be extracted or restored from a given source. In short, it is a failure that occurs when a system is unable to retrieve the expected information, which can have negative consequences for the overall functioning of the process or system involved.