---
id: object/codeunit/4018
type: object
title: Codeunit 4018 "GP Customer Migrator"
summary: Codeunit 4018 "GP Customer Migrator" in HybridGP (Microsoft.DataMigration.GP). 2 public procedures, 3 event subscribers. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - hybridgp
versions:
  introduced: "29"
  last_changed: null
  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: 83d320a310fcd02dcbe5c857ac544af8b044d68f47bb8a78eb28e1939d664f18
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/HybridGP/app/src/Migration/Customers/GPCustomerMigrator.codeunit.al
    title: src/Apps/W1/HybridGP/app/src/Migration/Customers/GPCustomerMigrator.codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
  objects: []
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
object_type: codeunit
object_id: 4018
name: GP Customer Migrator
namespace: Microsoft.DataMigration.GP
app: HybridGP
extends: null
first_version: "29"
last_version: "30"
present_in:
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 18
  events: 0
  subscribers: 3
relations:
  out: 1
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 5
  called_by: 0
  implements: 0
---

# Codeunit 4018 "GP Customer Migrator"

> Codeunit 4018 "GP Customer Migrator" in HybridGP (Microsoft.DataMigration.GP). 2 public procedures, 3 event subscribers. Introduced in BC29, still in BC30.

HybridGP · Microsoft.DataMigration.GP · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/HybridGP/app/src/Migration/Customers/GPCustomerMigrator.codeunit.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| TableNo | GP Customer |
| Permissions | tabledata "Standard Sales Code" = RIM, tabledata "Standard Sales Line" = RIM, tabledata "Standard Customer Sales Code" = RIM |

## Event subscriptions

- OnMigrateCustomer subscribes to Codeunit "Customer Data Migration Facade" OnMigrateCustomer
- OnMigrateCustomerPostingGroups subscribes to Codeunit "Customer Data Migration Facade" OnMigrateCustomerPostingGroups
- OnMigrateCustomerTransactions subscribes to Codeunit "Customer Data Migration Facade" OnMigrateCustomerTransactions

## Procedures

- `PopulateStagingTable(JArray: JsonArray)`
- `PopulateRMTRxStagingTable(JArray: JsonArray)`

Plus 13 local procedures.

## Relations

- runs on [Table 4093 "GP Customer"](../table/4093.md)

## 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 6112 "Customer Data Migration Facade"](../codeunit/6112.md) (39 calls: `CreateRecurringSalesLines → DoesCustomerExist`, `MigrateCustomerAddresses → DoesCustomerExist`, `MigrateCustomerDetails → CreateCountryIfNeeded`, …)
- [Codeunit 4037 "Helper Functions"](../codeunit/4037.md) (19 calls: `CreateCustomerPostingGroupIfNeeded → EnsureAccountHasGenProdPostingAccount`, `CreateCustomerPostingGroupIfNeeded → GetGPAccountNumberByIndex`, `CreateCustomerPostingGroupIfNeeded → GetPostingAccountNumber`, …)
- [Codeunit 1796 "Data Migration Error Logging"](../codeunit/1796.md) (4 calls: `MigrateCustomerDetails → SetLastRecordUnderProcessing`, `OnMigrateCustomer → SetLastRecordUnderProcessing`, `OnMigrateCustomerPostingGroups → SetLastRecordUnderProcessing`, …)
- [Codeunit 1797 "Data Migration Facade Helper"](../codeunit/1797.md) (1 call: `OnMigrateCustomerTransactions → CreateSourceCodeIfNeeded`)
- [Page 456 "No. Series"](../page/456.md) (1 call: `CreateRecurringSalesLineImp → (object)`)

## Across versions

- Present in: BC29-30
- 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: "GP Customer Migrator")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.