# Class 55 — Object Not In Prerequisite State

> Members and evidence boundaries for PostgreSQL SQLSTATE class 55.
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# Class 55 — Object Not In Prerequisite State

## Shared meaning {#meaning}

The first two characters `55` identify `Object Not In Prerequisite State`. A prerequisite object or state is missing or unsuitable. A class gives a directory-level family; each member still needs its own message, transaction aftermath, and response evidence.

## Members {#members}

The locked catalogue contains 5 members in this class:

[`55000`](../../55000/), [`55006`](../../55006/), [`55P02`](../../55p02/), [`55P03`](../../55p03/), [`55P04`](../../55p04/)

## Version boundary {#versions}

Member links lead to their own versioned facts; consult the version pages and source evidence for exact presence and change boundaries.

## Sources {#sources}

Members are generated from `data/classes.json` and the locked SQLSTATE directory.