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Add attributes to open types when calling an external action #10369

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Add attributes to open types when calling an external action
joostverhoog Nov 17, 2025
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quinntracy Nov 19, 2025
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14 changes: 12 additions & 2 deletions ...roflows-and-nanoflows/activities/integration-activities/call-external-action.md
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Expand Up @@ -69,8 +69,18 @@ Every parameter must have a value specified unless the service indicates that th

When the service indicates that a value cannot be empty (with `Nullable="false"`), the microflow will throw an error if the value evaluates to `empty`.

If you have selected a variable for an entity that has associations, you can select which associations you want to include in the arguments that you call the external action with.
{{% alert color="info" %}}
The ability to not specify a value for optional parameters was introduced in [Studio Pro 11.4.0](/releasenotes/studio-pro/11.4/).
{{% /alert %}}

### Additional Attributes

If you have selected a variable for an entity that is an open type (`OpenType="true"`), you can add additional attributes. The runtime adds these attributes to the attributes of the object when calling the action.

{{% alert color="info" %}}
The possibility to not specify a value for optional parameters was introduced in Studio Pro 11.4.0.
The ability to add additional attributes was introduced in [Studio Pro 11.5.0](/releasenotes/studio-pro/11.5/).
{{% /alert %}}

### Associations to Include

If you have selected a variable for an entity that has associations, you can select the associations you want to include in the arguments that you call the external action with.