CharlieShen

Guidelines

So, a developer can follow the guidelines mentioned below to implement a screen exit to a standard SAP transaction, as and when required:

Find out the Required Enhancements

1. Go to SMOD. Press F4 in the Enhancement field. In the next popup window, click pushbutton ‘SAP Applications’. A list will appear that contains information on all the enhancements, categorized under functional areas. Developer must search for the enhancements relevant to his functional area of interest – for e.g., Purchasing, Asset Accounting, etc.
2. Note down the enhancements. Then, come to the initial screen of SMOD and view the documentation of each enhancement to find out which one is required for your development.

Utilize the Enhancement in a Project

After you have found one, do as directed in the documentation. Generally, the steps are as follows:

1. Create a project using CMOD including your enhancement.
2. Create the append structure with new fields.
3. Go to the desired function group and create a subscreen with the new fields. Write PBO and PAI for the subscreen, if required.
4. Use the function exits in the enhancement to link the PBO and PAI of the subscreen with that of the main SAP program supporting the SAP transaction.
5. Maintain necessary linkage between the subscreen area of standard SAP program with the custom subscreen developed along with the custom program name. This can be done in the project (developed by CMOD including the enhancement) or outside as a part of configuration.
6. Activate the project.
7. Test to ensure that required functionality are met.

Case Study 1

Add three new custom fields for Asset master and maintain information for them

Requirement

Three fields in the legacy system have to be maintained in Asset master. These fields are:

1. Original Asset number – 20 characters
2. Location 2 – 15 Characters.
3. Model no – 20 characters

Location 2 should start with ‘L’.