Pass object to sub-flow

[perosterber]

Hello,

I have a script action which parses MRVS objects and return a html table string. This works when needed for flows. 

I wanted to use this also in a email script, so I created a sub-flow which will call the flow script action. (as I cannot call the flow script action directly from a script to my knowledge )

The problem is that the sub-flow seem not be able to receive the current.variables.<MRVS>. If I gs.log(current.variables.<MRVS>) it will print the information. But if I look in the flow context of the receiving sub-flow the values are null. What am I missing?

[pr8172510]

Hi,

This is a common issue when passing MRVS data into a subflow.

What’s happening

current.variables.<MRVS> is not a plain object — it’s a GlideElement / GlideRecord-like structure, so while gs.log() can print it, Flow Designer cannot serialize it properly when passing it as an input.

That’s why:

• You see values in logs
• But in the subflow context → it shows as null

---

How to fix it

You need to convert the MRVS into a true JSON object or array before passing it to the subflow.

Recommended approach

var mrvs = current.variables.databasflytt; // MRVS name

var result = [];

for (var i = 0; i < mrvs.getRowCount(); i++) {
var row = mrvs.getRow(i);
var obj = {};

obj.field1 = row.field1.toString();
obj.field2 = row.field2.toString();
// add all required fields

result.push(obj);
}

inputs['mrvs_object'] = result; // Array.Object

Important points

• Do NOT pass current.variables.<MRVS> directly
• Always convert to:
  • Array of objects (best option)
  • Or JSON string (JSON.stringify(result))

---

Subflow input type

Make sure your subflow input is:

• Array.Object (for structured data)
  or
• String (if passing JSON string)

---

Why this works

Flow Designer only accepts serializable data, not platform-specific objects like GlideElements.

[Tanushree Maiti]

Hi @perosterber 

Subflows don’t automatically inherit current or its variables, especially MRVS (Multi-Row Variable Sets). variables must be explicitly passed as inputs to a subflow.

Follow the steps as given in this post : How to access variable set variables in flow designer .

[perosterber]

Hi,

Yes ofc. Thats why I am trying to pass them but nothing is received, please see attached screenshots.

[Ankur Bawiskar]

@perosterber 

you have a flow action or script action?

share that screenshot