How To Fix CHIP_API664 - Outport parameter &1 also has &2 suitable tags, also rejects candidates

SAP Error Message - Details

• Message type: E = Error

• Message class: CHIP_API - Messages for Generic CHIP Framework

• Message number: 664

• Message text: Outport parameter &1 also has &2 suitable tags, also rejects candidates

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CHIP_API664 - Outport parameter &1 also has &2 suitable tags, also rejects candidates ?

  The SAP error message CHIP_API664 typically occurs in the context of SAP's Composite Application Framework (CAF) or when working with Web Dynpro applications. This error indicates that there is an issue with the outport parameter in a component interface, specifically that the outport parameter has multiple suitable tags, which leads to a rejection of candidates.
  Cause:
  
  Multiple Tags: The outport parameter is associated with multiple tags, which creates ambiguity in determining which tag should be used for the data binding.
  Configuration Issues: There may be a misconfiguration in the component interface or the data model that leads to this situation.
  Inconsistent Data Types: The data types of the outport parameter and the expected input may not match, causing the system to reject the candidates.
  
  Solution:
  
  Review Outport Configuration: Check the configuration of the outport parameter in the component interface. Ensure that it is correctly defined and that it has a unique tag associated with it.
  Adjust Tags: If multiple tags are defined, consider consolidating them or ensuring that only one suitable tag is available for the outport parameter.
  Check Data Types: Verify that the data types of the outport parameter and the expected input are compatible. Make necessary adjustments to align them.
  Debugging: Use debugging tools to trace the execution and identify where the ambiguity arises. This can help pinpoint the exact cause of the issue.
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance related to the version of SAP you are using, as there may be version-specific nuances.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Review training materials or documentation related to the Composite Application Framework and Web Dynpro to better understand the configuration and usage of outport parameters.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.