Call ExternalL Action to an Odata Action in not supported

[acarum]

I have already imported the metadata file using an OData Consume Document and an OData Endpoint. The OData endpoint exposes several OData actions. However, when I try to generate a microflow using Call External Activity, the script is not able to identify the corresponding OData actions.

[ako]

Thanks for reporting this @acarum.

We looked into this and CALL EXTERNAL ACTION is actually implemented in the current codebase — grammar, AST, visitor, executor, BSON parser/writer are all wired up. The syntax is:

$Result = CALL EXTERNAL ACTION Module.ServiceName.ActionName(
    Param1 = 'value',
    Param2 = $Variable
) ON ERROR CONTINUE;

So the issue may be more specific than "not supported." To help us diagnose what's going wrong, could you provide:

1. mxcli version — output of mxcli version
2. Mendix project version — which Studio Pro version created the .mpr
3. Reproduction steps — the exact MDL script you're running and the error/output you see
4. OData service setup — do you have a consumed OData service already created in the project (either via Studio Pro or via CREATE ODATA CLIENT)? The external actions are discovered from the consumed service metadata.

One possibility: there may be a discoverability gap — we don't currently have a SHOW EXTERNAL ACTIONS command to list available actions from a consumed OData service. If you're expecting to browse available actions before calling them, that would be a missing feature we could add.

Any additional detail would help us narrow down whether this is a parsing issue, a metadata discovery issue, or something else.