Hi,
Infowise Ultimate Forms exists in two versions. One is for our on-premises customers and one for customers using Microsoft 365. The products provides you with a wealth of functionality to help you implement your business solutions in SharePoint.
Some background features, such as Actions, Item ID or Import, allow you to create and update multiple list items and documents behind the scenes based on list updates or timer.
We allow you to define your own actions and import profiles and specify the logic of which items to update and how many updates to execute each time. The Microsoft 365 version runs on the Azure infrastructure and uses powerful Azure Functions capabilities to execute the necessary heavy lifting of querying, evaluating and updating your items.
Unlike the on-premises version that runs on your own servers, Microsoft 365 version runs on a shared infrastructure with essentially limited resources. To ensure smooth and problem-free operation, the app service must always have enough available resources to keep handling incoming requests.
For that reason, we need to make sure that no single customer utilizes server resources in excess of a certain pre-defined limit. For example, configuring an action that updates thousands of items every single time it executes will take up a significant portion of the available resources, causing a slowdown for other customers. Moreover, excessive use of the SharePoint API could cause the customer to become temporarily blocked by Microsoft as well.
Ultimate Forms implements a sophisticated throttling system that ensure fair distribution of resources. We constantly monitor multiple parameters, such as rate of requests, length of execution of each request and so on. The throttling system will stop execution of requests when it decides that the customer is crossing the maximum allowed thresholds.
The throttling limit will depend on the customer's license type. In general, the higher the scope of the license and the more users it includes, the higher will be the throttling limit. In any case, no action is allowed to execute for longer than 500 seconds. If several actions are set to respond to a single event, the duration will be calculated from the moment the first action started to execute.
If an action exceeds the limit, we will trigger an execution error within the action. If your action is set to write to the Action History, you will see an error message similar to 'Exceeded maximum allowed execution time'. If the action updates multiple items, some items will not be updated. Items already updated, will not be rolled back.
We encourage you to monitor your business logic execution and make the necessary adjustments to make sure your actions do not get throttled. For example, you can use conditions to limit the number of list items an actions executes on and that way shorten its execution time.
