---
id: object/codeunit/45
type: object
title: Codeunit 45 "Auto Format"
summary: Codeunit 45 "Auto Format" in System Application (System.Text). 2 public procedures, 3 events. Present since at least BC23, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - system application
versions:
  introduced: null
  last_changed: null
  deprecated: null
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-11T00:31:51.816Z"
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  prompts: {}
  input_hash: 97c665d498ab18a4b72c4127e7f18428876f765440ee2e4c9c7077d53fd50ebd
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/System%20Application/App/Auto%20Format/src/AutoFormat.Codeunit.al
    title: src/System Application/App/Auto Format/src/AutoFormat.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
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object_type: codeunit
object_id: 45
name: Auto Format
namespace: System.Text
app: System Application
extends: null
first_version: "23"
last_version: "30"
present_in:
  - "23"
  - "24"
  - "25"
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 5
  events: 3
  subscribers: 0
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 2
  calls: 1
  called_by: 6
  implements: 0
---

# Codeunit 45 "Auto Format"

> Codeunit 45 "Auto Format" in System Application (System.Text). 2 public procedures, 3 events. Present since at least BC23, still in BC30.

System Application · System.Text · BC23-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/System%20Application/App/Auto%20Format/src/AutoFormat.Codeunit.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Access | Public |
| SingleInstance | true |

## Events published

- `OnAfterResolveAutoFormat(AutoFormatType: Enum "Auto Format"; AutoFormatExpr: Text[80]; var Result: Text[80])` (integration): Integration event to resolve the ResolveAutoFormat procedure.
- `OnResolveAutoFormat(AutoFormatType: Enum "Auto Format"; AutoFormatExpr: Text[80]; var Result: Text[80]; var Resolved: Boolean)` (integration): Event that is called to resolve cases for AutoFormatTypes other that "0" and "11". Subscribe to this event if you want to introduce new AutoFormatTypes.
  - subscribers: [Codeunit 347 "Amount Auto Format"](../codeunit/347.md) ResolveAutoFormatTypes
- `OnReadRounding(var AmountRoundingPrecision: Decimal)` (integration): Integration event to resolve the ReadRounding procedure.
  - subscribers: [Codeunit 347 "Amount Auto Format"](../codeunit/347.md) ReadRounding

## Procedures

- `ResolveAutoFormat(AutoFormatType: Enum "Auto Format"; AutoFormatExpr: Text[80]): Text[80]`: Formats the appearance of decimal data types. Use this method if you need to format decimals for text message in the same way how system formats decimals in fields.
- `ReadRounding(): Decimal`: Gets the default rounding precision.

## Calls

From the extracted call graph of BC29 (graphify-al on the snapshot checkout): calls whose target is known from a declared type or an `Object::"Name"` argument. Interface dispatch and calls through events are not counted, so the list is not complete.

- [Codeunit 59 "Auto Format Impl."](../codeunit/59.md) (2 calls: `ReadRounding → ReadRounding`, `ResolveAutoFormat → ResolveAutoFormat`)

## Called by

- [Codeunit 59 "Auto Format Impl."](../codeunit/59.md) (3 calls: `DoResolveAutoFormat → OnAfterResolveAutoFormat`, `ReadRounding → OnReadRounding`, `ResolveAutoFormat → OnResolveAutoFormat`)
- [Codeunit 1890 "Reminder Communication"](../codeunit/1890.md) (2 calls: `SubstituteBeginningOrEndingDescription → ResolveAutoFormat`, `SubstituteRelatedValues → ResolveAutoFormat`)
- [Table 303 "Finance Charge Memo Line"](../table/303.md) (2 calls: `BuildDescription → ResolveAutoFormat`, `BuildMultiDescription → ResolveAutoFormat`)
- [Codeunit 368 "Format Document"](../codeunit/368.md) (1 call: `SetSalesPurchaseLine → ResolveAutoFormat`)
- [Table 295 "Reminder Header"](../table/295.md) (1 call: `InsertTextLines → ResolveAutoFormat`)
- [Table 302 "Finance Charge Memo Header"](../table/302.md) (1 call: `InsertTextLines → ResolveAutoFormat`)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: none

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). The call sections above are our own, per object, from the BC29 call graph. For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "codeunit", object_name: "Auto Format")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.