* Revisiting the Issue: * Similar to Question No: 130, the developer is unable to pass collection data as an input parameter because the collection is not visible under the available data items. * Analyzing the Possible Reasons: * Option A: As previously explained, collections need to be set to global to be visible and usable as input parameters. * Option B: A block surrounding the collection does not impact its visibility. * Option C: The number of fields in a collection does not affect its visibility as an input parameter. * Option D: Undefined fields in a collection cause functional issues but not visibility issues. * Conclusion: * The reason the collection is not visible as an input parameter is because A. The referenced Collection is not set to global. References: * Blue Prism Developer Documentation: Collections and Global Data Items * Blue Prism Training Material on Data Item Scope and Visibility