Change in Business Central API Limit

In early August 2019 Microsoft began throttling API requests to the cloud-based Business Central web services. The limit was changed from 1,000 API requests per second to 300 API requests per minute in Sandbox environments and 600 requests per minute in Production environments. (this covers both ODATA and SOAP requests).

If you use SmartConnect, and hit this limit, you will see one of the two following error messages.


Unable to call service: Unexpected character encountered while parsing value: R. Path '', line 0, position 0.

Failed to create record.Unable to call service: The remote server returned an error: (429).



Microsoft can increase the limit on an individual Business Central tenant. You can reach out to Microsoft and request to have the API limit increased for your Business Central tenant.


As a workaround in SmartConnect, you can use a sleep command in the Restriction to tell SmartConnect to pause while processing so the records are not imported too quickly.


SmartConnect on-premise




function sleep(milliseconds) {

var start = new Date().getTime();

for (var i = 0; i < 1e7; i++) {

if ((new Date().getTime() - start) > milliseconds){


return true;


Our development team is investigating the issue and evaluating options to work within the constraints of the web services.

If you have any questions, please contact our support team at support@eonesolutions.com


Leave a Comment


Importing Federal Filing Status with SmartConnect into Dynamics GP
SmartConnect Office Hours: SmartConnect.com Web Services
SmartConnect Bootcamp for Dynamics NAV & D365 Business Central Integration in San Diego, CA
Tech Tuesday: Using the SmartConnect.com Web Services
SmartConnect Office Hours: Salesforce Queries


2016 SmartConnect Integration Bootcamps
Tech Tues: Automatically refreshing Pivot Tables in Excel Refreshable Reports
Happy Thanksgiving from the eOne team!
New Releases of Extender and SmartList Builder
2017 SmartConnect Integration Bootcamps



open all | close all


Business Central CRM Dynamics 365 dynamics crm Dynamics GP Dynamics NAV Econnect Employee Spotlight eone eOne News eOne Spotlight Events Excel Excel Report Builder Extender Extender Enterprise Flexicoder GP GPUG integration Meet the Team Microsoft dynamics crm Microsoft Dynamics GP Office Relationships partners Popdock release Reporting SalesForce SalesForce.com scripting SmartConnect SmartConnect.com SmartConnect Bootcamp SmartConnect Office Hours SmartList SmartList Builder SmartList Designer SmartView SQL Support Tech Tuesday Templates training Zendesk

Integrate & Automate without Any Code.

SmartList Data has Never Been Faster.

The Easiest Way to Report on GP Data.