---
id: object/table/931
type: object
title: Table 931 "Service Item Trend Buffer"
summary: Table 931 "Service Item Trend Buffer" in Base Application (Microsoft.Service.Item). 11 fields. Present since at least BC23, still in BC30, changed in BC28.
tier: official
language: en
tags:
  - table
  - base application
versions:
  introduced: null
  last_changed: "28"
  deprecated: null
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-11T00:31:51.816Z"
  pipeline: 0.2.0
  prompts: {}
  input_hash: c1c31456942ce3f162cbf585e5c221a6f5c8edff361a07455bee5c1ec1967425
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Service/Item/ServiceItemTrendBuffer.Table.al
    title: src/Layers/W1/BaseApp/Service/Item/ServiceItemTrendBuffer.Table.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
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object_type: table
object_id: 931
name: Service Item Trend Buffer
namespace: Microsoft.Service.Item
app: Base Application
extends: null
first_version: "23"
last_version: "30"
present_in:
  - "23"
  - "24"
  - "25"
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in:
  - "28"
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 11
  procedures: 0
  events: 0
  subscribers: 0
relations:
  out: 0
  referenced_by: 0
  pages: 1
  extended_by: 0
  event_subscribers: 0
  calls: 0
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  implements: 0
---

# Table 931 "Service Item Trend Buffer"

> Table 931 "Service Item Trend Buffer" in Base Application (Microsoft.Service.Item). 11 fields. Present since at least BC23, still in BC30, changed in BC28.

Base Application · Microsoft.Service.Item · BC23-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Service/Item/ServiceItemTrendBuffer.Table.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| DataClassification | SystemMetadata |

## Fields

Explanation: the field's ToolTip in the code; without one, the ToolTip of a page control bound to the field (marked via the page); without that, its Caption (marked caption) when that differs from the name.

| No. | Name | Type | Explanation | Notes |
|---|---|---|---|---|
| 5 | Period Type | Option | — |  |
| 6 | Period Name | Text[50] | Specifies the name of the period shown in the line. |  |
| 7 | Period Start | Date | Specifies the start date of the period defined on the line for the service trend. |  |
| 8 | Period End | Date | — |  |
| 10 | Prepaid Income | Decimal | Specifies the total income (in LCY) that has been posted to the prepaid account with regard to the service item in the periods specified in the Period Start field. <small>via [Page 5984 "Service Item Trend Lines"](../page/5984.md)</small> |  |
| 11 | Posted Income | Decimal | Specifies the total income (in LCY) that has been posted to the general ledger for the service item in the periods specified in the Period Start field. <small>via [Page 5984 "Service Item Trend Lines"](../page/5984.md)</small> |  |
| 12 | Parts Used | Decimal | Specifies the cost of resources used in the specified period. <small>via [Page 5984 "Service Item Trend Lines"](../page/5984.md)</small> |  |
| 13 | Resources Used | Decimal | Specifies the cost of spare parts used in the period shown in the Period Start field. <small>via [Page 5984 "Service Item Trend Lines"](../page/5984.md)</small> |  |
| 14 | Cost Used | Decimal | Specifies the amount of service usage based on service cost for this service item. <small>via [Page 5984 "Service Item Trend Lines"](../page/5984.md)</small> |  |
| 15 | Profit | Decimal | Specifies the profit (posted income minus posted cost in LCY) for the service item in the period specified in the Period Start field. |  |
| 16 | Profit % | Decimal | Specifies the profit percentage for the service item in the specified period. |  |

## Keys

- Key1: Period Type, Period Start (clustered)

## Pages and codeunits on this table

- [Page 5984 "Service Item Trend Lines"](../page/5984.md) (source table)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: BC28

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). 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: "table", object_name: "Service Item Trend Buffer")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.