¶ Introductory Remarks
On this overview page, you'll find a collection of topics of interest to e-invoicing receivers requiring technical information about TecCom integration scenarios relevant for them as well as links to the SDK's sections containing the pertinent articles.
The intended audience of these articles are technical professionals such as project managers, DevOps engineers, IT administrators, and developers.
Since most, if not all, of these articles are part of the closed TecCom SDK, your TecCom Wiki user account will need elevated privileges first in order to gain access. Please contact your sales representative or the consultant assigned to your implementation project.
¶ General Topics
The first section among the General topics area in the TecCom SDK contains a handful of important introductory articles, of which 
Implementing TecCom e-Invoicing has to be your first stop if you're new to this SDK.
Click to jump to e-Invoicing SDK section
Next up is the TXML section. Here, all articles treating the various topics surrounding our default business message for invoice format (currently TXML 2.5) are gathered. Specifically, it contains:
- A download link to all of our schema files
- An in-depth description of the TXML business message type (overall structure, order of mandatory & optional elements, allowed field values, etc.)
- Several fully-worked examples of our TXML 2.5 business message
- A detailed listing of our business rules plus examples
The TXML business rules are an absolutely crucial bit to master if you're implementing either our WSDL or REST API. Your assigned technical consultant will conduct in-depth tests of your response quality together with you before the go-live, and the result of your annual message quality validation depends on you understanding and faithfully implementing our business rules.
Click to jump to SDK section: TXML
¶ Connect5
TecCom's Connect5 middleware is capable of serving as an extension of the buyers's backend by receiving electronic invoices in the defined format.
This part of our Wiki describers you on how to configure the Connect5:
Click to jump to SDK section: Connect5
¶ REST API Integration for Buyers
Buyers who wish to implement our REST API without any additional middleware components between their ERP and the TecCom platform can do so by implementing our Cloud Invoice.
The CloudInvoice is a RESTful API designed to help developers integrate invoice and customer management functionalities into their applications. It provides endpoints for creating, retrieving, updating, and deleting invoices and customers, as well as performing health checks. The following articles in this section explain how to do so:
- API Documentation
- Receiving and confirming Invoices as a buyer
- Error handling
- Testing your implementation
Click to jump to SDK section: REST API Integration for Buyers
¶ WSDL Integration for Receivers (TOM WSDL Wrapper)
The WSDL Integration is intended for the old e-invoicing solution scenario.
That means that this type of integration must me used only if was agreed for the project.
Receivers who wish to implement our WSDL without any additional middleware components between their ERP and the TecCom platform can do so by implementing our TOM WSDL web service. The following articles in this section explain how to do so:
- Introduction to TecCom's TecOpenMessaging (TOM) protocol
- Proper usage of necessary HTTP headers, SOAP and FunctionCallRequest/Response envelopes
- Receiving/Donwloading Invoices as a buyer and managing the workflow to certify the reception
- Error handling
- Testing your implementation