How To Fix SADL_GW_EXPOSURE016 - Action Exposure: Action &1 has invalid exporting multiplicity

SAP Error Message - Details

• Message type: E = Error

• Message class: SADL_GW_EXPOSURE - SADL Gateway Exposure

• Message number: 016

• Message text: Action Exposure: Action &1 has invalid exporting multiplicity

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_GW_EXPOSURE016 - Action Exposure: Action &1 has invalid exporting multiplicity ?

  The SAP error message SADL_GW_EXPOSURE016 indicates that there is an issue with the exporting multiplicity of an action in the context of the SAP Gateway and the Service Data Object (SDO) layer. This error typically arises when the action defined in the service has an invalid multiplicity setting, which means that the number of expected outputs does not match the defined parameters.
  Cause:
  
  Invalid Multiplicity Definition: The action defined in the OData service has an incorrect multiplicity setting. For example, if the action is expected to return a single value but is defined to return multiple values (or vice versa), this mismatch will trigger the error.
  Model Configuration Issues: There may be issues in the underlying data model or service definition that lead to inconsistencies in how actions are defined and expected to behave.
  Service Metadata Issues: The service metadata might not be correctly reflecting the action's definition, leading to discrepancies in how the action is executed.
  
  Solution:
  
  Check Action Definition: Review the action definition in the service. Ensure that the exporting parameters are correctly defined with the appropriate multiplicity. For example, if an action is supposed to return a single value, ensure that it is defined as such in the service metadata.
  Adjust Multiplicity Settings: If the action is defined to return multiple values but is only supposed to return one, adjust the multiplicity settings accordingly. This can usually be done in the service definition within the SAP Gateway Service Builder (transaction code SEGW).
  Regenerate Service: After making changes to the action definition, regenerate the service to ensure that the changes are reflected in the service metadata.
  Test the Action: After making the necessary adjustments, test the action again to ensure that it executes without errors.
  Check for Dependencies: Ensure that there are no other dependencies or related actions that might be causing the issue. Sometimes, related actions or entities can affect the behavior of the action in question.
  
  Related Information:
  
  SAP Gateway: The SAP Gateway is a technology that allows you to connect devices, environments, and applications to SAP systems. Understanding how to define and manage OData services is crucial for resolving issues like this.
  OData Services: Familiarize yourself with OData service definitions, including how to define actions, their parameters, and their expected outputs.
  SAP Community and Documentation: If you continue to face issues, consider checking the SAP Community forums or SAP Help documentation for additional insights and troubleshooting steps related to OData services and SAP Gateway.
  
  By following these steps, you should be able to resolve the SADL_GW_EXPOSURE016 error and ensure that your action definitions are correctly configured.