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Licensing

A trial license is automatically installed with the installation of ERPConnect.
A regular license is provided in the Theobald Software Customer Portal after purchasing the product.

Note

The standard trial license does not support working in web environments. To test ERPConnect with your ASP.NET project, apply for a test license number at sales@theobald-software.com.

Install the ERPConnect License

The demo license is valid for one month after downloading. After this period, a valid license key or license file must be provided.

ERPConnect checks the licence number on every call (client and server). Set the license during runtime before the first connection to SAP is established.

The ERPConenctLicense.json file that contains the license is provided in the Customer Portal - My Theobald Software. Use one of the following methods to set the license.

  • Read the license file and apply the license: 
    ERPConnect.LIC.LoadJsonLicense(string filename);
  • Copy and paste the content of the ERPConnectLicense.json file into a constant string in the code and use the string to set the license: 
    ERPConnect.LIC.SetJsonLicense(string json);

Use the following command to set the license number:

ERPConnect.LIC.SetLic("XXXXXXXXXX");

Switch from License Key to .json License

Earlier versions of ERPConnect used license keys for activation. This has been replaced with a JSON-based licensing mechanism. Existing license keys remain valid until 2029, when support for ERPConnect35.dll ends. As of May 2026, demo license keys for ERPConnect35.dll will no longer be distributed. After this date, demo users must use JSON license files. JSON licensing is only supported by ERPConnectStandard20.dll.

Follow the steps below to switch from a license key to a .json license:

  1. Make sure you use the ERPConnectStandard20.dll, as .json licenses are not compatible with ERPConnect35.dll. If needed, update your project to reference the ERPConnectStandard20.dll.
  2. Update the license activation code. Replace: 
    ERPConnect.LIC.SetLic(string licenseKey);
    with either: 
    ERPConnect.LIC.LoadJsonLicense(string filename);
    or: 
    ERPConnect.LIC.SetJsonLicense(string json);

For more information, see Install the ERPConnect License.

Maintenance

Contact the sales department for information about available maintenance options.
In case of technical difficulties, contact the support team: https://support.theobald-software.com.

Technical Support

Theobald Software offers support in English and German.

  1. Open a ticket in our Support Portal.
  2. Provide as much information as possible for the Theobald Software support team to understand and analyze the issue.
  3. If there is an error message, copy and paste the error message into the ticket.

Disclaimer

SAP versions that are no longer supported by the manufacturer are excluded from the Theobald Software support. Issues specific to custom BAPIs (Z function modules) or custom reports (Z reports) are also excluded from the scope of support.

Last update: July 2, 2025