Adding UAN Number to PaySlip – Enhancing HINCEDTO Program

Employees Provident Fund Organisation, India (EPFO) has launched a Universal Account Number (UAN) to provide a number of facilities to its members through a single window. In SAP a new subtype 08 ( Universal Account Number ) has been created for Infotype 185 to store Universal Account number.

Basically we design payslip through HR form editor ( Tcode PE51 ) and we add tables, fields to HR Form classes (PE51_Checktab).

String Template in ABAP, ES6, Angular and React

As an ABAP you probably be very familiar with String Template.

String Template in ABAP

A string template creates a string from literal text, embedded expressions, and control characters in a string expression. The most powerful feature I like is we can insert ABAP variable inside the template by wrapper variable with “{ }”, see one example below:

Tag(Marker) Interface in ABAP and Java

“Specific predefined global interface. By integrating the tag interface, classes or other interfaces stand out against the ABAP runtime environment. A tag interface generally does not contain its own interface components, but instead assigns a particular task to the integrating classes or interfaces and changes the way they are handled by the ABAP Compiler.“
And in fact this is not a specific concept of ABAP, but exists in many other language as well.

ABAP tag interface

One of the most famous tag interface in ABAP is if_serializable_object.

OOP Updates in ABAP 7.4 and ABAP 7.5

SAP introduced the concept of OO programming in ABAP in the year 2000. Since then, it’s been the recommended method of programming. Let’s describe the new features of ABAP that relate to OO programming.

1 Upcasting/Downcasting with CAST

In OO programming, a downcast is a process in which you turn a generic object, like a monster, into a more specific object, like a green monster. An upcast is the reverse. This functionality has been available in ABAP for a long time, but it gets a lot easier in 7.4.

Setup ESR connection between ABAP system and AEX (ERP to PO / SPROXY)

Check Transaction SPROXY on the ABAP system to ensure that ESR of PI/PO is connected.

If this is not given, you need the following setup steps:

1) Create 2 RFC destinations (Type G) on your ABAP System.

The name of the first on has no naming convention. This name will be used in sxmb_adm as URL.

Various Proxy Design Pattern implementation variants in Java, ABAP and JavaScript

This blog gives an introduction about various proxy design pattern implementation variant in Java and ABAP.

Below paragraph is quoted directly from Wikipedia:

“A proxy, in its most general form, is a class functioning as an interface to something else. The proxy could interface to anything: a network connection, a large object in memory, a file, or some other resource that is expensive or impossible to duplicate. In short, a proxy is a wrapper or agent object that is being called by the client to access the real serving object behind the scenes. Use of the proxy can simply be forwarding to the real object, or can provide additional logic. In the proxy extra functionality can be provided, for example caching when operations on the real object are resource intensive, or checking preconditions before operations on the real object are invoked. For the client, usage of a proxy object is similar to using the real object, because both implement the same interface.“

Covariance in Java and simulation in ABAP

I am the trainer of one standard course “Programming Language Concept” within SAP and there is a set of concept Covariance and Contravariance, which has only built-in support by a subset of programming language like Java. For those ABAPers who don’t have chance to touch this concept in their daily work, I have built a small example to simulate how the concept works in ABAP as well for ease of understanding. The example explained in this example is just a prototype purely for training and education purpose.

ABAP Call Monitor (SCMON) – Analyze usage of your code

Do you know that on average 60% of your custom code is in reality not executed in your productive landscape? Especially in SAP Business Suite migration projects like to SAP HANA or SAP S/4HANA such amounts of unused code result in huge adaptation efforts. Therefore SAP’s recommendation is to clean up your unused custom code before migration. But how can you identify the code that is not used?

The purpose of the ABAP Call Monitor (transaction SCMON) is to monitor the execution (usage) of ABAP code (function modules, method calls etc.) in your productive system. The advantage of the SCMON compared to the UPL (Usage Procedure Logging in SAP Solution Manager) is that using this tool you not only collect the usage data (how often a specific ABAP object was called), but also the information about the calling business process. Therefore as a result of the monitoring, you get a list of business transactions (callers) along with all ABAP objects that have been called within these business transactions including the number of calls.