Hi, What could be the cause of following error? parameter lo

Right, so we are talking about related actions here, right? It'd be useful if you provide where this error is happening so its easier to pin-point the issue in the future.

Having said that, you can only pass in rp!id as parameter when invoking related action. rp!id will automatically map to the primary key of your record type (for e.g. it will point to the PK of the db table for an entity backed record or process id for a process backed record). By this way, you get the key in your model as a parameter and process it accordingly. Thanks for clarifying the situation

Right, so we are talking about related actions here, right? It'd be useful if you provide where this error is happening so its easier to pin-point the issue in the future.

Having said that, you can only pass in rp!id as parameter when invoking related action. rp!id will automatically map to the primary key of your record type (for e.g. it will point to the PK of the db table for an entity backed record or process id for a process backed record). By this way, you get the key in your model as a parameter and process it accordingly. Thanks for clarifying the situation