SAP MAXIMAL_PATH_LENGTH Function Module for Calculate Maximum Path Length in a Graph

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MAXIMAL_PATH_LENGTH is a standard maximal path length SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Calculate Maximum Path Length in a Graph processing and below is the pattern details for this FM, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.

See here to view full function module documentation and code listing for maximal path length FM, simply by entering the name MAXIMAL_PATH_LENGTH into the relevant SAP transaction such as SE37 or SE38.

Function Group: GRAPH_ALGORITHMS
Program Name: SAPLGRAPH_ALGORITHMS
Main Program:
Appliation area:
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function MAXIMAL_PATH_LENGTH pattern details

In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.

CALL FUNCTION 'MAXIMAL_PATH_LENGTH'"Calculate Maximum Path Length in a Graph
TABLES
   OBJECT_NODES =  "ALE Distribution Packet: Node Quantity in Serialization Graph
   OBJECT_RELATIONS =  "ALE Distribution Packet: (Nodes, Level) in Serialization Graphs

EXCEPTIONS
   GRAPH_CONTAINS_CYCLE = 1    GRAPH_INCONSISTENT = 2 

.

TABLES Parameters details for MAXIMAL_PATH_LENGTH

OBJECT_NODES - ALE Distribution Packet: Node Quantity in Serialization Graph

Data type: UPS_C_SET_OF_NODES
Optional: No
Call by Reference: Yes

OBJECT_RELATIONS - ALE Distribution Packet: (Nodes, Level) in Serialization Graphs

Data type: UPS_C_SET_OF_EDGES
Optional: No
Call by Reference: Yes

EXCEPTIONS details

GRAPH_CONTAINS_CYCLE - Serialization Graph Contains a Cycle

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

GRAPH_INCONSISTENT - Serialization Graph Is Incorrectly Defined

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

Copy and paste ABAP code example for MAXIMAL_PATH_LENGTH Function Module

The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.

ABAP code using 7.40 inline data declarations to call FM MAXIMAL_PATH_LENGTH

The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.

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