Data entites method calling sequence in D365FO

Here is a sequence of method’s calls during export:

https://rahulmsdax.blogspot.com/2019/08/data-entity-methods-execution-sequence.html

1. initValue
2. validateField
3. validateWrite
4. update
4.1. doUpdate
4.1.1. persistEntity
4.1.1.1. doPersistEntity
4.1.1.1.1. initializeDataSources
4.1.1.1.1.1. initializeEntityDataSource
Note: initializeDataSource is called once for each DataSource in Entity.
4.1.1.1.2. mapEntityToDataSources
Note: initializeDataSource is called once for each DataSource in Entity.
4.1.1.1.3. saveDataSources
4.1.1.1.3.1. updateEntityDataSource
4.1.1.1.4. mapEntityToDataSource (maybe for another record)
4.1.1.1.5. saveDataSources
4.1.1.1.5.1. updateEntityDataSource for update operation and (insertEntityDataSource for insert)
4.1.1.1.5.1.1. mapDataSourceToEntity
4.1.1.1.5.1.2. doSaveDataSource
4.1.1.1.5.1.2.1. updateDataSource
4.1.1.1.5.1.2.1.1. preupInsertDataSource
4.1.1.1.5.1.2.1.1.1. validateWrite of table
Plus:
postLoad
This method is called during the export for setting the value to unmapped fields after entity is downloaded to datasource.

EXPORT:
       Entity- postLoad()
       staging - insert()
       Entity- postLoad() - depends on records

IMPORT:
       staging - postLoad()
       Entity - postLoad()
       Entity - initValue()
       Entity - validateField() - depends on no of fields
       Entity - validateWrite()
       Entity - insert() / update()
       Entity - persistEntity()
       Entity - initializeEntityDataSource()
       Entity - mapEntityToDataSource()
       Entity - insertEntityDataSource() / updateEntityDataSource()
       Entity - mapDataSourceToEntity()
       staging - postLoad()

Here are some method’s calls during Import:

defaultCTQuery
copyCustomStagingToTarget
postGetStagingData
preTargetProcessSetBased
postTargetProcess