Senior SAP Techno-Functional Architect (S/4HANA, IS-U)

Eswara Reddy Padala

Mobile: 408-***-****

Email: ************@*****.***

Professional Summary

Strategic SAP Techno-Functional Expert with 15+ years of global experience in architecting and delivering high-impact solutions across S/4HANA, HANA, SAP CRM, ECC, and IS-U landscapes; proficient in translating complex business requirements into scalable architecture using RAP, CDS, UI5, Fiori, OData, and ABAP to drive digital transformation and operational excellence.

Implemented a Fiori-based Customer Self-Service Portal where users can view their current consumption, update contact details, or request a payment extension using Managed scenarios. Implemented a cloud-ready Move-In/Move-Out portal on SAP BTP using the Side-by-Side extensibility model, ensuring a clean core by consuming standard IS-U OData APIs and preventing modifications to the S/4HANA backend.

Experienced in modernizing SAP landscapes using the ABAP RESTful Programming Model (RAP) to develop cloud-ready, end-to-end applications on S/4HANA using CDS data modelling and behavioral definitions; skilled in building scalable business objects with Managed/Unmanaged scenarios and Draft handling.

Expertise in SAP Solution Design, specializing in the integration of ECC, S4HANA, CRM and IS-U, EDI, NAP modules to meet evolving stakeholder needs and business objectives.

Orchestrating the full-lifecycle development of SAP UI5 applications, from requirement analysis and UX design to OData integration and deployment, ensuring defect-free delivery and high system stability.

Leveraged deep expertise in the SAP IS-U Meter-to-Cash (M2C) cycle to develop robust RFC interfaces, facilitating seamless data transfer between backend systems and UI layers. Engineered custom IDoc solutions to optimize data exchange and ensure high-integrity processing for utility-specific business workflows.

Expert SAP Technical Consultant with extensive experience in CDS, AMDP, ABAP Objects, and SAP CRM Web UI development. Proven track record in architecting complex solutions using BOL/GenIL, OData services. I specialized in building modern, responsive applications via the HANA UI5 SDK, while maintaining deep technical proficiency in IDoc/ALE integrations and ABAP Development Tools (ADT).

Proven expertise in SAP CRM (Sales, Service, Interaction Center), SD, MM, and ISU, with a deep architectural understanding of MVC design patterns and the CRM One Order Framework. Extensive experience in DOE Modeling and managing complex cross-system data flows between CRM, ECC, and ISU. Expert in IDoc/ALE integration, interface development, and large-scale data migrations.

Demonstrated expertise in the end-to-end Service-to-Cash lifecycle, specializing in Service Order & Contract Management, In-House Repair, and Billing. Proven track record in managing complex Asset Management and Installed Base (IBase) structures. Technically proficient in configuring Partner Management and cross-module integrations within SAP CRM, GRC, and IS-U environments.

Experience and understanding and of different functional areas like Master data management, Device management in ISU and the purpose of transaction types, pricing procedures, status profiles, access procedures, GRC configurations, Ability to work with different stake holders in the project in CRM.

Deep domain expertise across Pharmaceuticals, Retail, Manufacturing, and ISU Utilities, enabling targeted SAP solutions that align with industry-specific processes and regulatory landscapes.

Industry Experience

Working as an SAP Consultant for Maddisoft since Jul 21 until now.

Worked as Lead Consultant for HCL Technologies from June 2012 – Jul 21.

Worked as a Senior ABAP CRM Consultant for Artech Info systems Pvt Ltd from Feb 2012.

Worked as a Technical Consultant for Maahi Consulting, Jamnagar from Mar-2010 to Jan 2012.

Worked as a Junior developer for MobileOne Infocom Pvt Ltd, Hyderabad from 2007 to 2010.

SAP Certifications

SAP Certified Development Specialist – ABAP with HANA 2.0

SAP Certified Development Associate – SAP Fiori Application Developer

Educational Qualification

Master of Computers (MCA) from Osmania University.

Bachelor of Computer Applications from Andhra University.

Areas of Expertise

Core Languages

ABAP on HANA 2.0, RAP (RESTful ABAP Programming), CRM/IS-U ABAP, Object-Oriented ABAP (OOPS), CDS Modeling

UX & UI Frameworks

SAPUI5, Fiori Launchpad, CRM Web UI (BOL/GenIL/AET), BSP, HTML5, CSS3, JavaScript.

Backend & APIs

OData (SAP Gateway), RESTful Services, SOAP, Jitterbit, XML, JSON.

Platforms & Middleware

SAP CRM 7.7/7.1, IS-U, ECC, Multi-Resource Scheduling (MRS), CRM Middleware, IDoc/ALE, Netweaver Mobile 1.0

Cloud Platforms

SAP BTP (Administration, Security Role, have experience in CPI)

Development Tools

Eclipse ADT, SAP Business Application Studio (BAS), VS Code, SAP Web IDE, Git.

Professional Experience

Project # 1 Jul 2021 – Till Date

Client : NRG Energy (GRC, Retail)

Project Type : Implementation and Support

Role : SAP Sr Consultant

Environment : S4HANA, SAP CRM, ISU, UI5, Fiori, OData, ABAP, Eclipse ADT, BTP, GitHub Copilot

NRG is the power industry’s leading company and has grown from a power generator into an energy provider that powers homes and businesses throughout America. NRG partner with businesses to customize innovative power and sustainability solutions that are informed by our years of experience as market leaders. And we work diligently to stay ahead of an ever-evolving energy climate with rising demands.

Responsibilities / Deliverables:

Bridging the gap between business requirements and technical execution. Lead cross-functional workshops with business stakeholders to translate complex utility requirements into scalable SAP IS-U solution designs. Direct a high-performing offshore development team, ensuring rigorous code quality and timely end-to-end delivery of mission-critical interfaces.

Configured and maintained complex billing master data, including Rates, Rate Categories, Operands, and Prices to ensure accurate tariff application

Developed and optimized high-performance RFC interfaces to bridge SAP IS-U backend data with SAPUI5 frontend screens. Engineered custom data retrieval logic for Master Data, Device Management, and Billing & Invoicing, enabling real-time data consumption via OData services for customer care applications.

Implemented RAP Unmanaged Scenarios to wrap existing IS-U Business Logic (RFCs/BAPIs), exposing complex utility data—contracts, billing, and meter readings—as semantically rich CDS-based Business Objects. Engineered transactional behavior within RAP Business Objects (BOs), utilizing Determinations and Validations to automate data consistency checks during the utility enrollment and cancellation processes.

Implemented a Fiori-based Self-Service Portal where customers can view their current consumption, update contact details, or request a payment extension using RAP Managed scenarios with CDS modeling to define the database schema, relationships (like parent-child hierarchies), and semantic annotations

Implemented a cloud-ready Move-In/Move-Out portal on SAP BTP using the Side-by-Side extensibility model with CDS modeling, ensuring a clean core by consuming standard IS-U OData APIs and preventing modifications to the S/4HANA backend.

Designed and developed a real-time integration flow to automate bill delivery and payment confirmations in SAP CPI, reducing paper costs by 30% through automated Email and SMS notifications using Mail and REST adapters.

Converting the XML order data in SAP CPI into different formats (JSON, CSV) is essential to ensure efficient and error-free interactions with partner systems.

Developed a Managed Business Object (BO) for Billing Exceptions, leveraging Virtual Data Modeling (VDM) with CDS Views to aggregate data from IS-U tables (ERCH, EABL, DBERCHV).

Architected and deployed a seamless end-to-end solution for displaying call notes using OData services and SAP UI5, enabling intuitive and responsive user interfaces.

Spearheaded the architectural migration of legacy Web IC (Interaction Center) applications to a modern CCUX (Customer Contact User Experience) framework, utilizing SAP UI5 and OData to significantly improve agent productivity and system responsiveness.

Created complex data models to accurately represent business entities and relationships, ensuring data integrity and consistency.

Defined and implemented RESTful services to facilitate seamless interaction between the application and external systems.

Project # 2 June 2012 – July 2021

Denali Phases, Eloqua and MyAgilent Digital projects

Client : Agilent Technologies

Project Type : Implementation and Support

Role : Lead Consultant

Environment : SAP ECC 7.5, SAP CRM 7.5, S4HANA, ABAP, BI, Mobile Client, BCM, Jitterbit

Agilent is a global company that designs and manufactures electronic and bio-analytical measurement instruments and equipment for measurement and evaluation. Agilent Technologies has a stock market capitalization of over 15 billion USD and the company's headquarters are in Santa Clara, California, in the Silicon Valley region.

Responsibilities / Deliverables:

Translate and articulate the client business requirements into SAP CRM functionality either by customizing the existing functionality or by coordinating with the technical team to Deliver the Object.

Understand the different business processes, scenarios, have the knowledge of the business functionality and translate these requirements into the SAP CRM functionality.

Responsible for all the functional customizations where the business process supported included Service order, confirmations, service contract, complaints, and CRM Service billing for the project requirement.

Working on different types of production incidents which relate to SAP CRM Service transactions like Service contracts, renewal contracts and IBASE.

Using service now tool provide solutions on incidents, root cause fixes & quarterly enhancements through change requests.

Worked as project technical lead and responsible for all designs, developments and all deliverables.

Coordinate with business folks for understanding of requirements and testing issues.

Responsible for delivering the individual and team deliverables without any issues.

Responsible for reviewing all the documents and coding standards as per the client standards.

Design reviews with Internal managers and client managers before starting the developments.

Contribution:

Worked on IDocs, RFC interfaces to send the data from SAP CRM to down steams through the Jitter Bit.

Handled Asset DQ project on Asset management (Install Base) and Systemization for data Quality.

Creating the OData services in xml or Json format and providing the URL to mService team to consume the service.

Worked on Service Order Process, service contract management, IHRO Intercompany end to end scenario and IEP Swap Exchange Process.

Enhanced standard Web UI functionality as per the business requirements using BOL Programming, CRM ABAP.

Developed Custom Search Help for Employee Search using Organizational Unit and Business Role.

Enhanced Search and result list functionalities, Error message validations, new pop ups, new views as per the client requirements.

Worked on various Badi’s like CRM_EQUI_LOAD, ORDER_SAVE, CRM_ORDER_STATUS, PARNTER Badi, Org Unit Badi etc. for all enhancing the existing functionalities as per the client requirements.

Created new components to raise a pop up for mass date change and exchange parts display at items.

Worked on Status Workflows in SOM to define the flow from service order to confirmation.

Enhanced MRS functionalities for GEO bundling and Transactional bundling.

Integrate the MRS (Multi Resource Scheduler) with SAP CRM and enhance the functionalities as per the client requirements (SLA Calculation and Filter data based on Customer call back flag).

Enhanced Account Fact Sheet to display all transactions for a Sold-To Party.

Interact with Client Leads and Functional Consultants daily to resolve any conflicts or bottlenecks.

Project # 3 Feb 2012 – June 2012

ORICA CAYMUS

Client : Orica (Germany)

Project Type : Implementation.

Role : ABAP CRM Consultant

Environment : SAP ECC 6.0, SAP CRM 7.0, ABAP, BI

Orica is a rapidly expanding global company operating in over 50 countries around the world, employing over 14,000 people. It is organized in the following three divisions.

Orica Mining Services, Orica Chemicals, Minova

The acquisition activities over the last ten years have resulted in a business that operates in all regions of the world but organized primarily along the lines of local and regional processes which differ greatly by division. While a common IT platform is used in the majority of Orica, even within this platform the processes have been implemented differently in each region and a harmonization of organization, master data, like business processes and performance measurements have not been performed.

Responsibilities / Deliverables:

Search helps with functionality for adding new custom fields to the drop down using the standard search in the Web UI for the Employee Search.

Changing the statuses of the Preceding request and Subsequent documents automatically using Badi’s implementation in the Actions.

Created new fields and tables using the AET tool and created new views to get the new assignment blocks in the Quotation page.

Developed the callback function modules configured in the Events to populate the Gross value for the selected product.

Replicating pricing procedures from CRM to ECC and ECC to CRM.

Project # 4 Mar 2010 – Jan 2012

UNNATI II (Enhancements)

Client : Dr Reddy’s Laboratories

Project Type : Enhancement and Support Projects

Role : ABAP Technical Consultant

Environment : SAP ECC 6.0, SAP CRM 7.0, ABAP, BSP, BI

CRM Expense, Stockiest Call & SMS Reporting

Responsibilities:

Developed BSP application for CRM Expense (Group Doctors, Individual Doctors, and Group & Individual doctor settlements and approvals).

Application Logic developed for all the screens.

Created BDC’s to create the DP request and Settlement Request in the FI module in ECC server.

Responsible for delivery of the application.

SMS and Email functionality for every approval.

Developed BAPI wrappers for stockiest call backend adapters for DOE.

Designed and created data objects for stockiest call, master data objects in DOE 7.1

Developed a BSP page to get the list of employee visit doctors plan with the position.

Developed application logic in BSP to capture the SMS and sync process by DOE API.

Responsible for delivering the both mobile and web applications for Stockiest Call.

Project#5 October 2007 to Feb 2012

UNNATI II (Development and Support)

Client : Dr Reddy’s Laboratories

Technologies : ABAP, SAP Netweaver Mobile 7.1, Net C#, Satellite Forms

Environment : SAP ECC 6.0, SAP BI 7.0, SAP CRM 5.0, TungstenE2,

Windows Mobile 5.0, IIS Server 5.0, Visual Studio 2

UNNATI II is an Enterprise mobile application for mobilizing the pharmaceutical process in SAP CRM. This application is primarily for the PSR known as Professional Service Representative (field employees). Primary job of the PSR is to meet the chemist and to gather the information about own brands and also the competitor’s brands (known as RCPA). Based on which they will meet the doctors and explain them to promote these brands. As the data captured from the chemists is very important and which is driving the business it should be very accurate. So, user needs an application with an instrument by which PSR can be able to feed the data then and there. PSR able to see the daily sales in the report section on his device getting from the BI daily. Extending the application with Tej and Compensatory Off developments.

This application involves various Environments. The systems are Net weaver Mobile 7.1 for communication both client and backend servers, CRM (Master Data, Activity Creation), ECC (HR data) and BI (Sales, Wtdavgsku, Segmentation, Targeting) are the backend servers. All the transactional data (Chemist calls, Doctor Calls, RCPA, and InfoJini etc.) will go to CRM. Attendance and Expense will go to ECC. The information like Targeting and Sales Reports comes from BI.

The modules involved:

1.Backend Development (Bapi Wrappers)

2.DOE Modeling (Data Objects, Backend Adapters, Associations, Data distribution)

3.Netweaver Mobile Administration Configurations

4. Mobile Client application

5. Get Data box (legacy system)

6. Sync Service (DOE)

Responsibilities:

Development responsibility for Backend Integration.

Developed BAPI Wrappers (for CRUD operations from CRM, ECC, BI).

Designing and Configuration of DOE modeling for Data Distribution and Data Staging

(Data Objects and Backend Integration with backend adapters).

Implemented Custom Sync Service for Custom Clients (Palm &Windows mobile)

Supported the Client by analyzing the customer issues and providing inputs.

Responsible to deliver the Palm and Windows Mobile applications to Client during enhancement development.

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