Problem statement:

The issue of time-outs for dual-write sessions has been noticed in a couple of scenarios.

Analysis:

A default time-out of two minutes is not adequate for Dual-write sessions.

Solution:

Prerequisites: Dual-write core solution (Anchor solution for Dual-write Core) version 1.0.36. and later must be installed in Dataverse.

1. Log in to https://admin.powerplatform.microsoft.com/home
2. Navigate to Environments

3. Select your Environment

4. Navigate to Resources and select Dynamics 365 apps

5. Select “Dual-write core solution”
6. Click on … and then select details option
7. Validate version number

Let’s understand first, the core of Dual-write

What is Dual-write?

Dual-write is an out-of-the-box infrastructure that allows near-real-time bidirectional data integration capability between Dataverse & Dynamics 365 Finance & Operations (ERP).

How does the data sync mechanism work in a Dual-write statement? By design, as soon as a transactions trigger gets initiated between Dataverse and D365 FO or vice versa immediately data starts getting synchronized unidirectional or bi-directional depending upon how you have set up Dual-write table maps.

Table maps are the construct that allows the mapping of Dataverse table fields with D365 FO entities fields.

Under the hood, it leverages the Odata technology with a tight coupling of transaction scope to avoid data inconsistency in both apps.

Configure the Dual-write for Developer (Tier-1) and customer-hosted hosted environment

• Azure Active Directory (AAD) App registration

• Open Azure portal and select Azure Active Directory > App registrations

• Click on “New registration”

Enter the following information:

• Name: Enter a unique name for app
• Account type : Select supported account types (single or multi-tenant)
• Redirect URI : Keep this field blank

• Copy Application (client) id value in a separate document, you will require this value later

• Navigate to newly created Azure application, select Certificates & secrets option
• Click on New client secret
• Provide description and expiration date
• Click on Add
• Copy the generated key for later use

• Copy the generated key for later use

• Grant app permissions in D365 FO for Dataverse to call D365 FO apps
  a. Navigate to D365 FO System Administration > Users > Users
  b. Create new user as described in the below snap

c. Navigate to System Administration Module > Setup > Azure Active Directory applications to register Dataverse

Configure the virtual entity data source

This step will allow Dataverse to connect to D365 FO instance
a. Log in to https://admin.powerplatform.microsoft.com/home
b. Navigate to Advanced Settings > Settings > Administration > Virtual Entity Data Sources

c. Select the data source “finance and operations”

Enter the below information:

1. Target URL – Enter the URL of D365 finance and operations apps.
2. OAuth URL – Enter https://login.windows.net/.
3. Tenant ID – Enter your tenant, such as ABC.com
4. AAD Application ID – Enter the Application ID value that you copied earlier
5. AAD Application Secret – Enter the secret that copied earlier
6. AAD Resource – Enter 00000015-0000-0000-c000-000000000000. (This value is the value for the Azure AD application that represents finance and operations. It is always constant text.

• Post-run activities
  a. Stop and rerun dual-write maps

b. Contact Microsoft's support team to open a support ticket. Enter "Enable 5-minute transaction timeouts for dual-write DV to FinOps transactions" in the title and provide the tenant ID or organization ID. Your session time-out window will be set to five minutes by Microsoft

Sandbox and production environments

Contact Microsoft's support team to open a support ticket. Enter "Enable 5-minute transaction timeouts for dual-write DV to FinOps transactions" in the title and provide the tenant ID or organization ID. Your session time-out window will be set to five minutes by Microsoft.

Conclusion

Using the above step-by-step approach, you will be able to increase the default time-out limit from 2 minutes to 5 minutes.

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