How to modify a variable in RITM using REST API?

[Apex Predator]

I have a catalog item with a few variables. I am able to create RITM's for this. But I want to modify an RITM at a later time i.e I want to update one of the variable's value of the RITM using REST API. How can I achieve this? Is there an out of the box API to do this?
Thank you

[Allen Andreas]

Hi,

Please take a look at the ServiceNow Rest API Explorer.

https://developer.servicenow.com/dev.do#!/learn/learning-plans/orlando/technology_partner_program/ap...

Please mark reply as Helpful/Correct, if applicable. Thanks!

[Apex Predator]

I already went through this. I am able to query an RITM with variables as parameters(GET) but I not able to figure out how to update a particular variable of an RITM using PUT or PATCH.

[Ankur Bawiskar]

Hi,

You cannot update variables directly using OOB API unless you use Table API on this table "sc_item_option_mtom"

Catalog variable values are stores in the table Variable Ownership [sc_item_option_mtom] and sc_item_option.

I would suggest to create custom Scripted REST API which accepts RITM number, Variable Name and the Variable value to be updated

Regards
Ankur

[Ankur Bawiskar · Accepted solution]

@Apex Predator 

I have shared solution in this 1st link

Update requested item variables using REST API

How should a third part app update existing Request Item variables via API?

Regards
Ankur