Troubleshoot your Business Central automated workflows

When you connect Business Central with Power Automate to create automated workflows, you might run into error messages. This article provides suggested solutions to recurring problems.

Flow doesn't run on all records created or changed

Problem

If an event creates or changes many records, the flow doesn't run on some or all records.

Possible cause

Currently, there's a limit on how many records a flow can process. If more than 1000 records are created or changed within 30 seconds, the flow isn't triggered.

Note

For developers, the flow triggering is done via webhook notifications, and this limitation is due to the way the Business Central connector handles collection notifications. Learn more at Working with Webhooks in Dynamics 365 Business Central in the Developer and Admin help.

"The response from the Business Central service is too large" error

Problem

When using an action that interacts with records (such as Create record (V3) and Get record (V3)), Power Automate might display an error similar to this one:

The response from the Business Central service is too large

Possible cause

Even though Business Central has no set limit on the size of records returned by APIs, the Dynamics 365 Business Central connector for Power Automate can handle only records up to 8 MB.

All the Business Central APIs provided by Microsoft return records under this limit, but APIs provided by partners might not. If you see an error "The response from the Business Central service is too large," reach out to the partner who created the API you're using.

"Entity set not found" error

Problem

When you create a new Power Automate flow using a Business Central approval trigger, such as When a purchase document approval is requested, you might get an error message similar to this one:

Entity set not found: \<name\>

The placeholder, \<name\>, is the service name of the missing web service, such as workflowWebhookSubscriptions or workflowPurchaseDocumentLines.

Possible cause

Using Power Automate for approvals requires certain page and codeunit objects to be published as web services. By default, most of the required objects are published as web services. But in some cases, your environment might have been customized so these objects are no longer published.

Fix

Go to the Web Services page and make sure the following objects are published as web services. There should be an entry in the list for each object, with the Published check box selected.

Object Type	Object ID	Object Name	Service Name
Codeunit	1544	WorkflowWebhookSubscription	WorkflowActionResponse
Page	6408	workflowCustomers	workflowCustomers
Page	6406	workflowGenJournalBatches	workflowGenJournalBatches
Page	6407	workflowGenJournalLines	workflowGenJournalLines
Page	6409	workflowItems	workflowItems
Page	6405	Purchase Document Line Entity	workflowPurchaseDocumentLines
Page	6404	workflowPurchaseDocuments	workflowPurchaseDocuments
Page	6403	Sales Document Line Entity	workflowSalesDocumentLines
Page	6402	workflowSalesDocuments	workflowSalesDocuments
Page	6410	workflowVendors	workflowVendors
Page	831	workflowWebhookSubscriptions	workflowWebhookSubscriptions

Note

The Service Name value must be exactly as shown in the table. Don't change or translate the service name.

Learn more about publishing web services at Publish a Web Service.

See also

Use Power Automate Flows in Business Central
Workflow
Set Up Automated Workflows
Switch on Instant Flows
Manage Power Automate Flows

Find free e-learning modules for Business Central here