"How to create custom logic for an existing custom field in the app **Custom Fields** How to run a trace for the Fiori app **Create Purchase Order** in the app **Custom Logic Tracing** How to check the output value of this custom field using **Custom Logic Tracing** How to check the custom logic of this custom field, in **Custom Fields**"

"What do I need before I start?"

" You have a license for SAP S/4HANA Cloud You are familiar with Key User extensibility in SAP S/4HANA Cloud. If not, see the More Information section You are familiar with the app Custom Logic Tracing. If not, see the More Information section In SAP Fiori launchpad, you have the following authorizations: SAP_BR_PURCHASER for the app Create Purchase Order - Advanced SAP_BR_ADMINISTRATOR for Custom Logic Tracing and Custom Logic You have created a custom field using Key User extensibility yy1_zhdrprnt2_pdh_000 In Custom Logic, you have created a BAdI implementation YY1_FILLHEADERCUSTOMFIELDS_000 in the business context and BAdI definition Modify Purchase Order Header (MM_PUR_S4_PR_CHECK) "

Create Custom Logic Using Key User Extensibility and Perform Trace

Create custom logic for an existing custom field in S/4HANA Cloud ABAP Environment, then check its parameters using the Custom Logic Tracing app

🎓intermediate ⏱15 min SAP S 4hana Cloud ABAP Environment Intermediate ABAP Development SAP Business Technology Platform SAP BTP ABAP Environment ABAP Extensibility 0/7

Overview

🎓 intermediate ⏱ 15 min. SAP S 4hana Cloud ABAP EnvironmentIntermediateABAP DevelopmentSAP Business Technology PlatformSAP BTP ABAP EnvironmentABAP Extensibility

You will learn

✔How to create custom logic for an existing custom field in the app Custom Fields
✔How to run a trace for the Fiori app Create Purchase Order in the app Custom Logic Tracing
✔How to check the output value of this custom field using Custom Logic Tracing
✔How to check the custom logic of this custom field, in Custom Fields

J Julie Plummer September 6, 2024

Created by March 9, 2023

Contributors

Prerequisites

You have a license for SAP S/4HANA Cloud
You are familiar with Key User extensibility in SAP S/4HANA Cloud. If not, see the More Information section
You are familiar with the app Custom Logic Tracing. If not, see the More Information section
In SAP Fiori launchpad, you have the following authorizations:
- SAP_BR_PURCHASER for the app Create Purchase Order - Advanced
- SAP_BR_ADMINISTRATOR for Custom Logic Tracing and Custom Logic
You have created a custom field using Key User extensibility yy1_zhdrprnt2_pdh_000
In Custom Logic, you have created a BAdI implementation YY1_FILLHEADERCUSTOMFIELDS_000 in the business context and BAdI definition Modify Purchase Order Header (MM_PUR_S4_PR_CHECK)

Steps

Open all Close all

Intro

The administrator receives an welcome e-mail after provisioning. This e-mail includes the system URL. By removing /ui you can log into the SAP S/4HANA Cloud ABAP Environment system. Further information can be found Developer Extensibility: Connect to the ABAP System.

Throughout this tutorial, the placeholder ### or 000 is used. Always replace this with your initials or group number.

Step 1 Apply custom logic

—

Open the app Custom Fields.
step1a-open-custom-fields
Change to the Custom Logic tab, search for the BAdI implementation YY1_FILLHEADERCUSTOMFIELD_000.
Link text e.g., Destination screen
Open the Details screen (by choosing the arrow on the right).
step6b-badi-implementation-overview

You can now see the Published Logic and Draft Logic, if they exist, relevant to the custom field.

Step 2 Add custom logic

Comment out any existing code.
In the custom logic for the field yy1_zhdrprnt2_pdh_000, copy the following code. This code will copy the content from a standard field, purchaseorder-supplyingplant into the custom field, yy1_zhdrprnt2_pdh_000, where supplyingplant is filled.
ABAP
```
IF purchaseorder-supplyingplant is not initial.
purchaseorderchange-yy1_zhdrprnt2_pdh_000 = purchaseorder-supplyingplant.
endif.
```
step2a-add-custom-logic
Save and publish your custom code.

You are now ready to trace the effects of your custom code when a purchase order is created.

Step 3 Start trace

Open the app Custom Logic Tracing and choose Start Trace.
step1a-start-trace
Enter the following information, remembering to change the placeholder to your group number or initials:
Field Name Value
Name Test Create PO Custom Fields 000
Trace User Your user
Stored until future date in the format dd.mm.yyyy
Lifetime 15
step1b-start-trace-details

Field Name	Value
Name	Test Create PO Custom Fields `000`
Trace User	Your user
Stored until	future date in the format `dd.mm.yyyy`
Lifetime	15

Step 4 Create purchase order

IMPORTANT: While Trace is running, create a purchase order as follows.

Open Create Purchase Order - Advanced.
step4a-create-po
In the top header, change the Order Type to Stock Transport Order and the Supplying Plant to 1010.
step4b-change-to-stock-transport-order
Enter the Supplying Plant, 1010
step4c-supplying-plant
In the header section, go to the Custom Fields tab, check that the custom field ZPOHDRPRINT2 now contains the value 1010.
step4a-create-po-custom-field
On the Org Data tab, enter the following:
Field Name Value
Purchase Organization 1010
Group 001
Company code 1010
If you check the custom field YY1_ZHDRPRNT2_PDH_000, it is now filled with the same value as Supplying Plant, 1010.
step2c-fill-org-data
In the Item Overview section, enter the following. Ignore any warnings.
Field Name Value
Material Tg0501
PO Quantity 1
Delivery Date future date in the format dd.mm.yyyy
Plant 1010
step4d-fill-item-overview-material
The other fields - Material Group, Plant Storage Location - should be filled automatically.
step2d-fill-item-overview
Choose Save.
step4e-note-stock-transport-number