Status

  Approved

OwnerPrasad Naidu
Stakeholders

Purpose

The purpose of this document is to define the approach, scope, and rules for the conversion of Bank Master Data from legacy systems into SAP S/4HANA. The Bank Master includes information about House Banks and Bank Directory (External Banks) required for processing payment transactions such as vendor payments, customer refunds, and bank reconciliations.

This conversion ensures that all bank-related master data is available and consistent in the S/4HANA system to support business-critical financial operations post go-live. The data migration encompasses external Banks (from tables like BNKA): Used for storing details of banks globally (e.g., SWIFT, bank address, bank key).

In Syensqo, the bank master data will be loaded and post go-live, the bank master data will be maintained by loading delta changes on a monthly basis.

Conversion Scope

 Bank master Data will be migrated from PI2 client to S4 


Relevancy Criteria:

1) All Bank keys in BNKA table are in scope from PI2

2) If there are any duplicate keys in source systems 

    a) Read all the records from table BNKA 

    b) Eliminate Duplicates - Select max( BANKS, BANKL) , All the other fields from the step b by grouping on the fields BANKS, BANKL

3) Business is responsible for Data cleansing.


List of source systems and approximate number of records
SourceScope

Source Approx No. of Records

Target SystemTarget Approx

No. of Records

PI2Bank Master~374000S4~374000

Additional Information

Multi-language Requirement

Document Management

Legal Requirement

Special Requirements




Target Design

The technical design of the target for this conversion approach.

TableFieldData ElementField DescriptionData TypeLengthRequirement
BNKABANKSBANKSBank Country/Region KeyCHAR3Mandatory
BNKABANKLBANKKBank KeysCHAR15Mandatory
BNKABANKABANKAName of Financial InstitutionCHAR60Mandatory
BNKAPROVZREGIORegion (State, Province, County)CHAR3Optional
BNKASTRASSTRAS_GPStreet and House NumberCHAR35Optional
BNKAORT01ORT01_GPCityCHAR35Optional
BNKASWIFTSWIFTSWIFT-BIC for International PaymentsCHAR11Optional
BNKABGRUPBGRUPBank Group (bank network)CHAR2Optional
BNKAXPGROXPGROPost Office Bank Current Account FlagCHAR1Optional
BNKALOEVMLOEVMDeletion IndicatorCHAR1Optional
BNKABNKLZBANKLBank NumberCHAR15Mandatory
BNKAADRNRAD_ADDRNUMAddress NumberCHAR10Optional
BNKABRNCHBRNCHBank BranchCHAR40Optional
BNKACHKMECHECKMETHCheck Digit Calculation MethodCHAR4Optional
BNKAVERSVERS_BFFormat of File with Bank DataCHAR3Optional
BNKABICKYPRQ_BICKYKey of a BIC+ data record (Swift)CHAR12Optional


Data Cleansing

NA

Conversion Process

The high-level process is represented by the diagram below:

Data Privacy and Sensitivity


Extraction

Extract data from a source into . There are 2 possibilities:

  1. The data exists. connects to the source and loads the data into . There are 3 methods:
    1. Perform full data extraction from relevant tables in the source system(s).
    2. Perform extraction through the application layer.
    3. Only if ; cannot connect to the source, data is loaded to the repository from the provided source system extract/report.

The agreed Relevancy criteria is applied to the extracted records to identify the records that are applicable for the Target loads


Extraction Run Sheet

Req #Requirement DescriptionTeam Responsible

NA










Selection Screen

Selection Ref ScreenParameter NameSelection TypeRequirementValue to be entered/set





















Data Collection Template (DCT)

No DCT for this object


Extraction Dependencies

Item #Step DescriptionTeam Responsible

NA










Transformation

The Target fields are mapped to the applicable Legacy field that will be its source, this is a 3-way activity involving the Business, Functional team and Data team. This identifies the transformation activity required to allow to make the data Target ready:

  1. Perform value mapping and data transformation rules.
    1. Legacy values are mapped to the to-be values (this could include a default value)
    2. Values are transformed according to the rules defined in
  2. Prepare target-ready data in the structure and format that is required for loading via prescribed Load Tool. This step also produces the load data ready for business to perform Pre-load Data Validation

Transformation Run Sheet

Item #

Step description

Team responsible

1.      

Ensure all the fields that require value mapping, as stipulated  Mapping tables, have the latest signed-off mapping files imported into toolMigrate.

Data team

2.      

In tool, select the Object Bank Master

Data team

3.      

Go to Process Area Launch and Process the Object - Bank Master

Data team

4.      

Launch the Objects to execute transformation.

Data team

5.      

Monitor the transformation progress and ensure performance and completion is within allowed timeframe

Data team

6.      

Generate Pre-Load reports .

Data team

7.      

Generate data load count.

Data team

8.      

Log errors as defects, if any and address resolutions. Close defects.

Data team

9.      

Re-transform and re-validate the Pre-load reports if necessary.

Data team

10.   

Validate the transformed file as part of pre-load validation, raise data defects or provide the pre-load sign-off.

Business

11.   

Analyse and resolve any pre-load defects logged by business.

Data team

12.   

Repeat steps 6 to 11 if necessary

Data team

13.   

Proceed to pre-load validations

Data team


Transformation Rules


Rule#Source
System
Source
Table
Source FieldSource DescriptionTarget SystemTarget TableTarget FieldTarget DescriptionTransformation Logic
1ECCBNKABANKSBank Country/Region KeyS/4 HANABNKABANKSBank Country/Region KeyCopy as-is from ECC
2ECCBNKABANKLBank KeysS/4 HANABNKABANKLBank KeysCopy as-is from ECC
3ECCBNKABANKAName of Financial InstitutionS/4 HANABNKABANKAName of Financial InstitutionCopy as-is from ECC
4ECCBNKAPROVZRegion (State, Province, County)S/4 HANABNKAPROVZRegion (State, Province, County)Copy as-is from ECC
5ECCBNKASTRASStreet and House NumberS/4 HANABNKASTRASStreet and House NumberCopy as-is from ECC
6ECCBNKAORT01CityS/4 HANABNKAORT01CityCopy as-is from ECC
7ECCBNKASWIFTSWIFT-BIC for International PaymentsS/4 HANABNKASWIFTSWIFT-BIC for International PaymentsCopy as-is from ECC
8ECCBNKABGRUPBank Group (bank network)S/4 HANABNKABGRUPBank Group (bank network)Copy as-is from ECC
9ECCBNKAXPGROPost Office Bank Current Account FlagS/4 HANABNKAXPGROPost Office Bank Current Account FlagCopy as-is from ECC
10ECCBNKALOEVMDeletion IndicatorS/4 HANABNKALOEVMDeletion IndicatorCopy as-is from ECC
11ECCBNKABNKLZBank NumberS/4 HANABNKABNKLZBank KeysCopy as-is from ECC
12ECCBNKAADRNRAddress NumberS/4 HANABNKAADRNRAddress NumberCopy as-is from ECC
13ECCBNKABRNCHBank BranchS/4 HANABNKABRNCHBank BranchCopy as-is from ECC
14ECCBNKACHKMECheck Digit Calculation MethodS/4 HANABNKACHKMECheck Digit Calculation MethodCopy as-is from ECC
15ECCBNKAVERSFormat of File with Bank DataS/4 HANABNKAVERSFormat of File with Bank DataCopy as-is from ECC
16ECCBNKABICKYKey of a BIC+ data record (Swift)S/4 HANABNKABICKYKey of a BIC+ data record (Swift)Copy as-is from ECC


Transformation Mapping

Mapping Table NameMapping Table Description








Transformation Dependencies

List the steps that need to occur before transformation can commence
Item #Step DescriptionTeam Responsible













Pre-Load Validation

Project Team

Completeness

TaskAction
Generation of
Pre-load reports

Reconciliation of total

Record Count

Summary of Record Counts from Constructed dataset, Valid and Invalid record set.




Accuracy

TaskAction
Mandatory field mapping and transformationObtain a list of the fields to be populated with values from mapping files and ensure all these fields contain S/4HANA values. 
Review the data report to ensure mapping value is not missing in tool.
Capture errors in the Data Error report.

Business

Completeness

TaskAction
Verify record count in Pre-load reports Ensure third party file SWIFTREF used for Bank master is up to date and it is the latest version file.





Accuracy

TaskAction





Load

The load process includes:

  1. Execute the automated data load into target system using load tool or product the load file if the load must be done manually
  2. Once the data is loaded to the target system, it will be extracted and prepared for Post Load Data Validation

Source data for Bank.xml

Load Run Sheet

Item

Step description


Team responsible

1

Ensure the load tools are transported into the correct tool instance.

Data team

2

Ensure DCTs and all required mappings are submitted and complete

Data team

3

Ensure Pre-load sign-offs are obtained.

Data team

4

Execute tool Trial Balance Upload

Data team

5

Generate the post load reports in tool.

Data team

6

Log errors as defects, if any and address resolutions. Close defects.

Data team

7

Resolve defects by reupload and re-generate post load reports if necessary.

Data team

8

Business to validate the post load files as part of post-load validation, raise data defects or provide the post-load sign-off.

Business

9

Repeat steps 5 to 7 if necessary.

Data team


Load Phase and Dependencies

Configuration

Item #Configuration Item






Conversion Objects

Object #Preceding Object Conversion Approach

list the exact title of the conversion object of only the immediate predecessor – this will then confirm the DDD (Data Dependency Diagram)




Error Handling

Error TypeError DescriptionAction Taken










Post-Load Validation

Project Team

Completeness

TaskAction
Reconciliation of Record CountConfirm all the  Bank Master records listed in the Construction file (DCT )/ from the third party SWIFTREF file are loaded





Accuracy

TaskAction
Check values in key fields for accuracy

Post-load reports will have the same structure as the load file and some additional columns as required to facilitate the post load validation.

Any mismatch will be reported under the Post Load - Error report.

Each Column will have Source field, target field and Matching Status. ( XXXX_ECC, XXXX_S4HANA, XXXX_MATCH). A loading status field to show the record is loaded in S/4HANA.  Also, a field to unmatched fields in the Post-Load file. 






Business

Completeness

TaskAction
Record Count Check

Review the record count report from the Data Team and ensure it is correct by cross-checking with the record count confirmed during Pre-load Business Validations

Business will check BNKA table using tcode SE16N. 





Accuracy

TaskAction
Complete CheckPost-Load File contains matching status of each field. 
Spot check



Key Assumptions

  • Master Data Standard is up to date as on the date of documenting this conversion approach and data load.
  • is in scope based on data design and any exception requested by business.


See also

Change log

Version Published Changed By Comment
CURRENT (v. 33) Mar 03, 2026 16:03 NAIDU-ext, Prasad
v. 32 Dec 03, 2025 16:08 NAIDU-ext, Prasad
v. 31 Dec 03, 2025 15:34 NAIDU-ext, Prasad
v. 30 Dec 02, 2025 12:41 NAIDU-ext, Prasad
v. 29 Nov 19, 2025 17:07 NAIDU-ext, Prasad
v. 28 Sept 25, 2025 11:59 NAIDU-ext, Prasad
v. 27 Sept 23, 2025 10:04 NAIDU-ext, Prasad
v. 26 Sept 22, 2025 18:55 NAIDU-ext, Prasad
v. 25 Sept 22, 2025 18:47 NAIDU-ext, Prasad
v. 24 Sept 17, 2025 12:00 NAIDU-ext, Prasad

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