Product: Dynamics 365 Business Central
Article Link: https://help.truecommerce.com/en/articles/16140741-dynamics-365-business-central-setting-up-service-to-service-authentication
Service to Service (S2S) Authentication is an alternative method for connecting TrueCommerce's Foundry platform with Dynamics 365 Business Central that does not require creating a dedicated user account within Business Central. This can be useful in environments where adding additional user licenses is not preferred or available.
Unlike the standard OAuth sign-in method — which links a specific Business Central user account to Transaction Manager — S2S authentication registers TrueCommerce as a trusted application directly within Business Central's Microsoft Entra Applications, allowing the integration to operate independently of a named user.
Only admin accounts can complete all the setup steps in this section.
Business Central Setup
Log into: Business Central
Navigate: Search → Microsoft Entra Applications
Select: + New
Paste: {ce0821f8-76a4-4af5-a14f-dcbfd8aac983} into the Client ID field
Paste the value exactly as shown, including the curly brackets { }
Enter: TrueCommerce Integration (Prod) into the Description field
Select: The three-dot menu (…) in the App ID field
Search: TrueCommerce EDI and eCommerce
Select: TrueCommerce EDI and eCommerce
Click: OK
Set: The State field to Enabled
Scroll: Down to the User Permission Sets section
Assign: D365 BUS PREMIUM and TRCADDON
Additional permissions can be added if needed beyond D365 BUS PREMIUM and TRCADDON.
Wait: Until the page has fully saved before proceeding
Click: Grant Consent
Sign In: In the pop-up window, log in using the admin account of the customer's Business Central tenant to complete the consent process
If consent is successful, a confirmation message will appear stating that consent was given successfully.
If consent is not successful, a detailed error message will appear. An admin account will be required to complete the setup.
Additional Resources
rev 07/29/2026