Hi All,
Can you please advise how to resolve the below issue? Error is from the ION API 5 in the screenshot.
I am getting this while testing FieldUpdate API, to update ORDHDR.custom_data[1], in the workflow. Request Body takes three string inputs and the data type is defined correctly.

Strange thing is when I test the same order-suffix within quotes, like below, it works fine.

This is how I have given the request body. Request body works fine when tried through API gateway (SX/rest/serviceinterface/proxy/FieldUpdate) for a specific example, problem occurs in the workflow.

Please advise. Thank you very much.