SAP S/4HANA for advanced variant configuration Share... · 2019-10-10 · • Call external engine...

PUBLIC

Andreas Koelbl, SAP

October, 2019

SAP S/4HANA for advanced variant configurationNew Syntax & Enhancement Concept

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Agenda

New Syntax

Enhancement Concept

Variant Functions?

Summary

SAP

Advanced Variant Configuration

New Syntax


Syntax Enhancements

Numeric Function: Round to Decimal Places

New capabilities:

• Round a given value to a given number of decimal places

• Supported High-Level Dependencies: all dependency types

• Syntax: round(<single value cstic | expression>, <unsigned constant>)

Recent

innovation

Result:Syntax:

X = Round( Y, 2 )

X = Round( Y, 0 )

Y = 2,9621 X = 2,96

Y = 2,9621 X = 3


Syntax Enhancements

New capabilities:

• All of the joined expressions must be fulfilled

• Supported High-Level Dependencies: constraint restrictions

• Syntax elements can be used outside of if-conditions

• AND

• OR

• NOT

Example

• x OR y if …

• x AND y if …

• NOT x

Boolean Expressions: Overview

Planned

innovation


Syntax Enhancements

Boolean Expressions: AND

• Syntax: <expression> AND <expression>

• Example (Cstics with domain value 1 – 9)

Planned

innovation

X = 1 AND Y = 1

Restriction:

X = 1

Y = 1

Result:


Syntax Enhancements

Boolean Expressions: OR

Planned

innovation

X = 1 Y = [1 ... 9]

X = 2 Y = 1

Y = 2 X = 1

X = 1 OR Y = 1

Result:Syntax:

• Syntax: <expression> OR <expression>



Syntax Enhancements

Boolean Expressions: NOT

Planned

innovation

Result:Syntax:

• Syntax: NOT <expression>


X IN ( 1-3, 9 )

NOT Y IN ( 1-3, 9 )

X = [ 1, 2 , 3 , 9 ]

Y = [ 4 – 8 ]


X = 1 Y = [2 ... 9]

X = 1

Y = 1

Syntax Enhancements

Boolean Expressions: Negative Variant Tables

Planned

innovation

Result:Syntax

• Example ((Cstics with domain value 1 – 9)

TAB_XY [1,1]

NOT Table TAB_XY (

X = X,

Y = Y ).

Table TAB_XY (

X = X,

Y = Y ).

X = 2 Y = [1 ... 9]


Syntax Enhancements

Numeric Function: Minimum / Maximum Value

Planned

innovation

New capabilities:

• Choose the minimum / maximum value consistent with the configuration

• Supported High-Level Dependencies: procedures

• Syntax idea: Cstic = max(Cstic), Cstic = min(Cstic)

Result:Syntax:

Y ?= MAX(X)

Y = MIN(X)

X = [2 – 4, 6] Y = 6 (Default)

X = [2 – 4, 6] Y = 2


Syntax Enhancements

Generalized Variant Table

Planned

innovation

New capabilities:

• Use wildcards, multiple values and intervals in variant table cells

• Supported High-Level Dependencies: all table statements


X = 1 Y = 1 Z = [1 - 9]

Z = 4 X = 1 Y = 1

Z = 2 X = [1 – 9] Y = [1 - 4]

Result:

X Y Z

1 1 *

2 2; 3 1 - 3

> 2 4 < 4

X = [1 – 9] Y = [1 - 4] Z = [1 - 9]


Syntax Enhancements

String Processing

Planned

innovation

New capabilities:

• Common String Functions

• Supported High-Level Dependencies: all dependency types

• Convert string to numeric

• Get substring

• Find substring

• Length of string

• …


Other Syntax Will Follow Soon…

Future

innovation

SAP

New BAdIs


New BAdIs in AVC

Enable implementation of customer logic

Overview on BAdI Definitions

• Modify predefined domain values to characteristics

• Modify valuation of characteristics before starting

validation

• Modify valuation of characteristics after complete

validation

• Modify valuation of characteristics at leaving

configuration

Multiple Implementation Allowed

• Common Case: One implementation per

configuration model (root material)

Recent

innovation

Planned

innovation


VCH_HL_MD_DOMAIN_MODIFYPlanned

innovation

Use Case Examples

• Build-up empty domains from tables including

language specific description for string

characteristics

• Add temporary values for special promotions

• Change value description for certain customer

• Change static defaults e.g. for certain customer

materials

• Restrict domains on level of configuration model

Execution

• Only AVC high-level configuration

• First activation of a configurable instance

Scope

• Add new domain values and intervals

• Delete predefined domain values

• Change certain attributes of predefined values

Overrule the values predefined in the characteristic master data


VCH_HL_PRE_VALIDATE_ASSIGNRecent

innovation

Use Case Examples:

• Call external webservice, RFCs, other APIs

• Call external engine e.g. BRF+

• Pass values from one instance to another

instance without specifying every characteristic

• Read other class types like 001, 019, 017 and z-

tables

• Read master data table (only data stored on

database) for value assignment

• Check user inputs before dependency processing

• Replaces many variant functions of LO-VC

Execution

• Every roundtrip before dependency processing

• Considered in high-level dependency processing

• Control assignment on all instances

Scope

• Add new assignments

• Delete value assignments

Modify value assignments before processing the dependencies


VCH_HL_POST_VALIDATE_ASSIGNRecent

innovation

Use Case Examples:

• Switch author to external assignments (avoid

changes by user)

• $SUM_PART; $COUNT_PART (if not needed in

validation)

• Calculation of weights, surfaces, electrical and

mechanical parameters

• Ability to review fully configured object looking for

specific information

and set a value

• Replaces many variant functions of LO-VC

Execution

• Every roundtrip after dependency processing

• NOT Considered in high-level dependency

processing


Scope

• Add new assignments (all instances)

• Delete value assignments (all instances)

Modify value assignments after processing the dependencies


VCH_HL_ON_SAVERecent

innovation

Use Case Examples:

• Special checks on valuation consistency

• Set values for other processes to use (customer

tables)

• Delete values of helper cstic (not to be stored to

cbase)

Execution

• While leaving configuration

• NOT Considered in high-level dependency

processing


Scope

• Lock configuration

• Add new assignments Delete value assignments

Modify value assignments while leaving configuration

SAP

Variant Functions?


Variant Functions?

• Dependencies are executed on SAP HANA level

• Variant Function in ABAP layer interrupts engine processing in SAP HANA

• Data transfer of actual configuration model between SAP HANA & ABAP required

Core AVC Engine(Implementation in C++)

Validation

BADi VarFunc

Filter: Func1Implementation1

BADi VarFunc


BADi VarFunc


ABAPLayer

SAP HANA(AFL)


Disadvantages of Variant Functions in ABAP Layer:

• Performance issues expected

• Interruption of engine logic endangers consistency

What to do instead?

• Use of new provided syntax

• Use of BAdIs before and after validation

Variant Functions?

SAP

DEMO

SAP

Summary


• AVC provides new syntax

• Rounding to decimal places

• Boolean syntax combinations: not/and/or on left side of if-condition

• Other syntax will follow soon…

• AVC provides new BAdIs for customer enhancement to modify

• Domain values

• Value assignment

• Variant functions should be replaced by new syntax and BAdIs before and after validation

Summary

27


Q&A

Contact information:

Andreas Koelbl

Product Owner Advanced Variant Configuration Engine

[email protected]

Thank you.

SAP S/4HANA for advanced variant configuration Share... · 2019-10-10 · • Call external engine...

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