change a Transform Map from asynchronous to synchronous using REST API Explorer in ServiceNow.

IshaniD
Tera Contributor

3 weeks ago

Since a Transform Map runs synchronously by default, is it possible to change it from asynchronous back to synchronous using the REST API? Is it through script ? 
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Hanna_G
Kilo Sage

3 weeks ago

Hi @IshaniD 

 

You cannot change a Transform Map from async to sync via REST because the Transform Map does not control execution mode. It only defines field mappings and scripts. Sync vs async is decided by how the transform is triggered (UI transform, scheduled import, Import Set API, IntegrationHub, scripted call, etc.).

 

There is no REST flag on the sys_transform_map table to flip this.

 

If you need synchronous behaviour, I'd invoke the transform synchronously from server side script (for example via a Scripted REST API calling the Import Set Transformer). ServiceNow will usually run transforms in the background to avoid request timeouts, so the recommended pattern is async transform plus polling for status rather than blocking the REST call.

 

The ServiceNow Developer site has some great info on API's, Transform Maps and REST. 

Under Reference there is a great collection of the APIs available and what they do. 
Under Learn there are courses on Import Sets and Scripted Rest API. 

https://developer.servicenow.com/

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