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I need to streamline how our SAP system produces Peppol-compliant eInvoices. At the moment, we are using the standard SAP eDocument tools—Electronic Document Framework (EDF) / Electronic Document Service (EDS)—but I have no firm confirmation yet whether the underlying system will ultimately be SAP HANA or SAP B1, so the solution must cope with either environment. Scope of work We already have the Peppol XML schema and a mapping guide. Your task is to extract every required field from the SAP sales-invoice record, build the XML exactly to that template, convert it to Base64, and then push it through a REST-based POST call. The service will return success or error codes; those responses need to be captured, logged and surfaced clearly so we can reconcile invoices that fail. Key expectations • End-to-end code or configuration that runs inside, or callable from, SAP eDocument (EDF/EDS) • Accurate field mapping to the provided Peppol XML structure • Reliable Base64 encoding and transmission over HTTPS (no password should be used) • Response handling that distinguishes success from failure and stores the returned messages for audit purposes • Clear, concise technical documentation and one short hand-over session Acceptance criteria The solution will be considered complete when a sample batch of invoices is automatically: 1. extracted from our test SAP client, 2. transformed into valid Peppol XML that passes online validation, (format details will be discussed when selected). 3. encoded, transmitted via the supplied POST endpoint, and 4. logged with verifiable response messages. Please centre your proposal on your direct experience with SAP eDocument, SAP HANA or SAP B1 integrations, Peppol XML generation, and API work; examples of similar projects will help me choose quickly.
ID do Projeto: 40175167
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94 freelancers estão ofertando em média $3.915 SGD for esse trabalho

Hello, I understand you want a SAP Peppol eInvoice integration that works with either SAP HANA or SAP B1, extracting the required fields from the SAP sales-invoice record, building the Peppol XML exactly as your template, Base64 encoding it, and sending it via a REST POST with responses logged for audit. I will create a portable, end-to-end solution that fits into SAP EDF/EDS, uses the provided schema and mapping guide, and is secure over HTTPS without passwords (token or certificate auth). The component will produce clear success/failure reporting, store returned messages, and support easy reconciliation. I will deliver complete code/config, a tested sample batch from your test SAP client, and concise technical docs plus a short handover session. The approach is environment-agnostic, so it runs inside SAP or callable from it, with robust error handling and an auditable trail across HANA or B1. What SAP environment will host this integration (HANA or B1), and any constraints on EDF/EDS? Do you have the Peppol schema version and mapping guide, and any non-standard fields to consider? How should we handle field-level validation and error reconciliation between SAP and the endpoint? What authentication method should secure the REST endpoint (token or certificate), and any network constraints? What are the logging and audit requirements (retention, privacy), and where should logs be stored? Best regards,
$5.000 SGD em 29 dias
9,2
9,2

We have all the expertise you need for your SAP Peppol eInvoice Integration Automation project. Our team has extensive experience in backend systems like SAP, including SAP eDocument (EDF/EDS) and flexible enough to work with either SAP HANA or SAP B1. We have successfully integrated various systems with SAP at the API level using RESTful and SOAP-based web services, so we have a deep understanding of the challenges and potential optimizations that can be made for such integrations.
$5.000 SGD em 30 dias
9,1
9,1

With our extensive experience in the field, I am confident that my team at CnELIndia has the skills and drive necessary to take on and succeed in your SAP Peppol eInvoice Integration Automation project. We are no strangers to the specifics of SAP eDocument technologies and have successfully delivered numerous API-driven projects over PHP, just like the one you're seeking. You need a solution tailored for both SAP HANA and SAP B1, and that's where our versatility shines through. Not only have we excelled in using the Electronic Document Framework (EDF) and Electronic Document Service (EDS), but our skills extend far beyond, also working with technologies like React Native. Your project goals are essentially the embodiment of what we do best: mapping existing schemas onto new formats, automated transformation and processing of invoices, thorough logging processes, and clean integration with RESTful APIs. We aim not just to meet your requirements but also to make your life easier by providing comprehensive documentation and a transparent handover process. So let's discuss further how we can use our skills to make your invoice management bookkeeping as seamless as possible!
$4.000 SGD em 55 dias
9,0
9,0

Hi cole8888 I’m your web developer, ready to turn your project SAP Peppol eInvoice Integration Automation into reality! I’d love to discuss the details and create something amazing together. Feel free to message me anytime, and we can also hop on a quick video or audio call whenever it's convenient for you. I’ve developed many projects exactly like what you’re looking for. If you want to see more relevant samples, just contact me through the chatbox, and I’ll share them instantly. ★ Why Clients Trust Me 500+ successful web projects delivered 430+ positive client reviews Expert in PHP, XML, Software Architecture, SAP, VB.NET, RESTful API, SAP HANA, API Development WordPress, Shopify, PHP, JavaScript, HTML, CSS, Plugin/Theme Development, Laravel, WebApp Clean, modern, responsive and SEO-optimized designs Fast delivery, great communication, and long-term support Available during EST hours for smooth collaboration If you want a professional developer who delivers quality work on time and stress-free, let’s connect. I’m excited to help build something amazing for you. Best regards, Kausar Parveen
$4.000 SGD em 20 dias
8,2
8,2

Hello, With substantial experience in both SAP HANA and SAP B1 integrations, my team at Live Experts® not only understands the intricate functioning of these systems but also has comprehensive knowledge of working with APIs. We've developed a wide range of solutions for SAP including significant eDocument work. Given your requirement for Peppol XML generation and REST-based POST calls, we bring a tested competence using the same technologies in a variety of projects. In addition to being skilled in SAP, we also have an impressive background in software development which has honed our expertise in encoding, decoding and transmitting data seamlessly. This is further bolstered by our strong competency in VB.NET and PHP, ensuring that we handle Base64 encoding and transmission over HTTPS with utmost precision. Moreover, our capability extends to providing clear and concise technical documentation to make the transition as smooth as possible for your team. I believe this proficiency coupled with a proven commitment to quality makes our team at Live Experts® the perfect fit for your project. Let's discuss how we can transform your vision into an efficient automated reality today! Thanks!
$5.000 SGD em 2 dias
8,2
8,2

Hi, this is Elias from Miami. I read through the Peppol + SAP eDocument brief and I’m aligned on the workflow: pull the required fields from SAP sales invoices, build Peppol XML exactly to your schema + mapping guide, Base64 encode it, POST it to your REST endpoint over HTTPS (no password auth), then capture success/error responses with clean logging + audit visibility so failed invoices are easy to reconcile. I’ve done ERP → XML → API pipelines before (strict schemas + validation + response reconciliation), and I’m comfortable working within SAP constraints (EDF/EDS style “callable-from-SAP” logic + traceable outputs). Since you’re still confirming HANA vs SAP B1, I’ll design it so the mapping/extraction layer is adaptable, while keeping the XML generator + API sender consistent. Q1: Which SAP “invoice object” is the source in your setup (e.g., SD Billing Doc/VBRK-VBRP, FI invoice, or B1 OINV/INV1), and do you want batching by date range, billing type, or a specific status flag? Q2: For the REST endpoint auth: is it mTLS/client certificate, OAuth2, or API key header (you mentioned no password—want to confirm the exact mechanism + required headers)? Q3: Where should audit logs live: SAP tables (preferred for traceability), an external DB, or EDF/EDS built-in logs—and what invoice “retry” behavior do you want for failures? If you share the mapping guide + sample invoice data + endpoint spec, I can come back with a clear fixed quote + timeline immediately. Regards, Elias
$4.000 SGD em 35 dias
7,8
7,8

⭐⭐⭐⭐⭐ Streamline SAP for Peppol-Compliant eInvoices Efficiently ❇️ Hi My Friend, I hope you are doing well. I just checked all of your project requirements and I can see you are looking for a solution to streamline your SAP system for Peppol-compliant eInvoices. You have no need to look any further as Zohaib is here to help you! My team has successfully completed 50+ similar projects for SAP integrations. I will extract the required fields from your SAP sales-invoice record, build the XML to the Peppol template, convert it to Base64, and push it through a REST-based POST call. I will ensure accurate response handling and clear documentation within your budget. ➡️ Why Me? I can easily do your SAP eInvoice project as I have 5 years of experience in SAP eDocument, API integration, and XML generation. My expertise includes data mapping, Base64 encoding, and response handling. Additionally, I have a strong grip on SAP HANA and SAP B1, ensuring a smooth implementation. ➡️ Let's have a quick chat to discuss your project in detail, and I can show you samples of my previous work. Looking forward to discussing with you in chat. ➡️ Skills & Experience: ✅ SAP eDocument ✅ SAP HANA ✅ SAP B1 ✅ Peppol XML Generation ✅ API Integration ✅ Base64 Encoding ✅ Data Mapping ✅ Response Handling ✅ Technical Documentation ✅ RESTful Services ✅ Error Logging ✅ Invoice Reconciliation Waiting for your response! Best Regards, Zohaib
$3.400 SGD em 2 dias
7,9
7,9

Hello, HAVE HANDS-ON EXPERIENCE WITH SUCH PROJECT I bring 9+ years of proven experience with SAP integrations (EDF/EDS, SAP HANA, SAP B1), Peppol eInvoicing, and secure API-based data exchange, and I clearly understand your requirement. The goal is to build a robust, scalable SAP-integrated flow that reliably transforms sales invoices into Peppol-compliant XML and transmits them with full audit visibility. Core features -->> SAP invoice data extraction -->> Peppol XML mapping & validation -->> Base64 encoding -->> REST POST transmission -->> response logging & reconciliation. I have delivered similar Peppol and SAP eDocument integrations handling XML generation, error handling, and compliance validation. My approach is based on clean architecture, secure API communication, precise mapping logic, and an agile, test-driven workflow. Let’s connect in chat, as I have a few technical questions to clarify the SAP landscape and validation flow before proceeding further. Thanks Julian
$3.000 SGD em 7 dias
8,0
8,0

How will the extracted sales-invoice records be structured for the XML? I’m eyeing those fields to get the mapping just right. For the coding part, I can work with both SAP HANA and B1 using PHP to ensure smooth eDocument integration. The Peppol XML and Base64 encoding sound straightforward, but I’m keen on details for the API response handling. *** Preferred Freelancer - great reviews *** Engineer also... Fluent in English, German and Spanish native. ---------------IT Knowledge - CMS: WordPress (Plugin dev. & Woo Ecommerce), Joomla (blogs), Shopify (with Liquid for template edition), Wix & Squarespace - Coding Langs: PHP (web coding), JS (web coding), HTML/CSS (webpages), MySQL (Databases), APIs/JSON, VBA (macros Excel/Access) - Frameworks/Libraries: Bootstrap (html/css), React (JS coding), Node (JS coding), Laravel (PHP coding), CodeIgnater (PHP coding), React Native (App Prototyping) - Compilers: SASS/SCSS (css), PUG (html)
$4.000 SGD em 7 dias
7,7
7,7

Having successfully completed similar projects, we're confident in delivering a robust SAP Peppol eInvoice Integration for you. Our expertise in AI-driven automation and API development aligns perfectly with your needs. With over 8 years of experience, we've mastered SAP eDocument integrations, Peppol XML generation, and RESTful API development, ensuring seamless data extraction, transformation, and transmission. Our team is adept at creating intelligent systems that not only meet criteria but exceed expectations. We'll ensure accurate field mapping, reliable Base64 encoding, and comprehensive response handling. Our AI-first approach guarantees a scalable, maintainable solution with clear technical documentation and a smooth hand-over session. Let's leverage our top-rated experience to streamline your eInvoice process efficiently. Could you confirm the SAP environment (HANA/B1) to tailor our approach? Q: How soon can we access your test SAP client for initial assessments? Q: Are there specific constraints or additional preferences we should be aware of? We look forward to partnering with you on this transformative project. Best regards, Puru Gupta
$5.000 SGD em 29 dias
7,6
7,6

I have reviewed your SAP Peppol eInvoice integration requirement and clearly understand the scope around SAP eDocument (EDF/EDS), Peppol XML generation, Base64 encoding, and REST-based transmission. I have 10+ years of experience working with SAP integrations across SAP S/4HANA and SAP Business One, including invoice extraction, XML/IDoc mapping, Peppol compliance, and secure API integrations. I will implement a solution callable from SAP eDocument that accurately maps SAP sales invoice data to your provided Peppol XML schema, validates the structure, encodes it to Base64, and transmits it via HTTPS POST. API responses (success/failure) will be reliably captured, logged, and stored for audit and reconciliation. The solution will be environment-agnostic to support both HANA and B1, with clean technical documentation and a focused handover session. I WILL PROVIDE 2 YEAR FREE ONGING SUPPORT AND COMPLETE SOURC CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STOIRES I am confident in delivering a production-ready, compliant automation that passes Peppol validation and operates end-to-end from SAP test client to external endpoint. I eagerly await your positive response. Thanks.
$3.000 SGD em 7 dias
7,4
7,4

Hi there, I am excited to assist you with the integration automation for Peppol-compliant eInvoices in your SAP system. With extensive experience in SAP eDocuments, both in SAP HANA and SAP B1 environments, I've successfully implemented similar projects that streamline invoice processing and compliance. My approach will ensure that we accurately extract the necessary fields from your SAP sales-invoice records, creating the Peppol XML template as per your mapping guide. I will ensure reliable Base64 encoding and seamless transmission over HTTPS, accompanied by robust response handling for success and error codes, making reconciliation straightforward. I will also provide clear technical documentation along with a concise hand-over session to ensure a smooth transition. Given the critical acceptance criteria, I’ll ensure the solution is fully tested, validated, and logged as required. I’m ready to start within the 30-day timeframe, and I’m looking forward to discussing this project further!
$4.500 SGD em 30 dias
6,7
6,7

Hi I can streamline SAP EDF/EDS eInvoicing by generating Peppol-compliant XML from SAP billing/sales-invoice data and delivering it reliably to your REST endpoint. The core technical risk is consistent field extraction and mapping across uncertain backends (SAP HANA stack vs SAP B1), while keeping the eDocument process audit-safe and repeatable. I’ll implement a mapping layer that reads all mandatory invoice/partner/tax/line-item fields from the SAP invoice objects and renders XML exactly to your provided Peppol schema/template. Then I’ll handle Base64 encoding, HTTPS POST via certificate/secure token auth (no passwords), and strict request/response validation with retry-safe idempotent references. Responses (HTTP status + business error codes) will be parsed and persisted with correlation IDs, payload hash, and timestamped logs so failed invoices can be reconciled quickly. The solution will be callable inside EDF/EDS, with clean configuration points for endpoint, certificates, and mapping variants per document type. I’ll deliver concise technical documentation plus a handover walkthrough covering mapping, deployment, monitoring, and troubleshooting. Thanks, Hercules
$5.000 SGD em 20 dias
6,8
6,8

Hello, I understand you’re looking for an SAP integration specialist to automate Peppol eInvoice generation and transmission. I have extensive experience working with SAP eDocument (EDF/EDS), SAP HANA, and SAP B1 environments to extract invoice data, map it precisely to XML templates, and ensure compliance with Peppol standards. My approach ensures accurate Base64 encoding, secure HTTPS transmission, and reliable response logging for audit purposes. I prioritize solutions that are maintainable, scalable, and fully documented for handover. I have successfully delivered similar end-to-end SAP automation projects, including generating XML from sales invoices, validating against Peppol schemas, and integrating with REST APIs for seamless invoice posting. My implementations emphasize error handling, response reconciliation, and precise mapping of complex invoice fields, ensuring the system is robust and fully compliant with regulatory standards. With clear technical documentation and a structured handover session, I guarantee your solution will automate invoice extraction, transformation, and transmission efficiently. I focus on minimizing manual intervention, optimizing SAP workflows, and providing detailed logs for compliance verification. My experience ensures fast delivery, high accuracy, and full auditability for your Peppol eInvoice integration. Asif
$5.000 SGD em 11 dias
6,8
6,8

Hi there, hope you are doing well I checked your project descripton carefully, I can complete this project perfectly in your needed timeline because I am super experienced in Rest api integration, php, XML and VB.net ping me please Thanks
$4.000 SGD em 7 dias
6,9
6,9

Hi, Thank you for posting the good task! As a skilled web developer, I have a proven experience designing and implementing Peppol-compliant eInvoice integrations, including end-to-end XML generation, Base64 encoding, and secure REST-based transmission with full response handling and audit logging. In a recent ERP project (Highnix), I worked on the full lifecycle of sales and purchase invoices (Invoices, Credit Notes, etc.), where I: - Extracted invoice data from the ERP data model - Built Peppol-compliant XML strictly following the provided schema and mapping guide - Encoded payloads in Base64 - Transmitted documents via HTTPS POST to a Peppol access point (SESAMI API) - Captured, logged, and surfaced success/error responses for reconciliation and audit purposes My experience aligns perfectly with your project and I am confident that I can implement your requirements. And you can check my profile and reviews from clients here: https://www.freelancer.com/u/elishadiah326 I’d be happy to discuss the Peppol format details and your target SAP landscape in more depth. Looking forward to working with you for the long term. Best regards, Diah
$4.000 SGD em 7 dias
7,2
7,2

As an experienced developer with a deep understanding of SAP and eCommerce platforms, your project is well within my wheelhouse. I've worked extensively with SAP eDocuments (EDF/EDS) and have successfully integrated them into different environments including SAP HANA and SAP B1. Coupled with my extensive API work and XML generation knowledge, I will be able to create a streamlined solution to extract the necessary fields from your sales-invoice ensuring accurate mapping to the Peppol XML schema and conversion to Base64 for secure transmission. Your project's key expectations align perfectly with my abilities. I have successfully handled similar projects in the past, building Restful APIs and handling responses effectively. Quality assurance is a vital aspect of any project, and logging the response messages for Easy audit purposes is something I pride myself on. As a seasoned freelancer, I understand the importance of clear documentation and smooth handover sessions. With this in mind, rest assured that with me on board, your entire invoices process - from extraction to logging - will be streamlined impeccably.
$3.000 SGD em 10 dias
6,4
6,4

Hi there, Good afternoon I am Talha. I have read you project details i saw you need help with SAP, Software Architecture, VB.NET, XML, RESTful API, SAP HANA, PHP and API Development I am excited to submit my proposal for your project, which focuses on a comprehensive project plan. To begin, we will thoroughly understand your project's objectives and requirements, ensuring alignment on scope and goals. We will provide a clear and realistic project timeline with manageable milestones to ensure timely completion Please note that the initial bid is an estimate, and the final quote will be provided after a thorough discussion of the project requirements or upon reviewing any detailed documentation you can share. Could you please share any available detailed documentation? I'm also open to further discussions to explore specific aspects of the project. Thanks Regards. Talha Ramzan
$3.000 SGD em 14 dias
5,7
5,7

With Solutionzhere, you are guaranteed a seasoned team with deep expertise in SAP, API development, and the associated software architectures. We understand the importance of your project to streamline your eInvoicing process and reduce errors. Our proficiency includes working with SAP, especially with eDocument (EDF/EDS) - the crux of this project. Whether it's running code inside SAP or via external calls to cater for future migration to HANA or B1, we've got you covered. Meticulousness is our watchword; we will ensure that every required field from the sales-invoice record is accurately mapped to the provided Peppol XML structure. Moreover, our experience with converting data formats such as Base64 encoding and effective transmission via secure protocols will come in handy. As AI-driven ERP, CRM & Automation experts, we have an uncanny ability to simplify complex processes. We promise to deliver neat technical documentation along with a concise hand-over session; at Solutionzhere, we believe in not just delivering quality work but also empowering our clients. Choose us so as to accomplish this project intelligently and efficaciously together.
$5.000 SGD em 20 dias
5,8
5,8

Hi there, I’ve carefully analyzed your requirements and recently delivered a Peppol eInvoicing integration using SAP eDocument (EDF/EDS), where sales invoices were extracted, mapped to a client-provided Peppol XML schema, Base64-encoded, and transmitted via REST with full response logging and audit visibility. That solution was designed to work across both SAP S/4HANA and SAP Business One environments. For your project, I’ll implement a callable EDF/EDS-compatible solution that reliably extracts all required invoice fields, builds Peppol-compliant XML exactly to your mapping guide, encodes it to Base64, and securely posts it over HTTPS. I’ll ensure success and error responses are clearly distinguished, persisted for reconciliation, and documented, with a concise handover and walkthrough so your team can support it confidently. I’m available to begin work immediately and committed to delivering a compliant, well-documented eInvoicing flow within the shortest possible timeframe. Best regards, Elenilson
$3.500 SGD em 7 dias
5,5
5,5

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