How To Fix RSDHA302 - Invalid type for parameter '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 302

• Message text: Invalid type for parameter '&1'

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA302 - Invalid type for parameter '&1' ?

  The SAP error message RSDHA302, which states "Invalid type for parameter '&1'", typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the data type of a parameter being used in a query or a data model. This error can arise in various scenarios, such as when defining InfoObjects, queries, or when working with data sources.
  Causes:
  
  Incorrect Data Type: The parameter specified in the error message may have an incorrect data type that does not match the expected type for the operation being performed.
  Inconsistent Metadata: There may be inconsistencies in the metadata definitions of InfoObjects or queries, leading to mismatches in expected data types.
  Configuration Issues: The configuration of the InfoProvider or the query may not be set up correctly, leading to invalid parameter types.
  Changes in Data Model: If there have been recent changes to the data model, such as changes to InfoObjects or transformations, it may lead to this error if the changes are not properly reflected in the queries or reports.
  
  Solutions:
  
  Check Parameter Definition: Review the definition of the parameter mentioned in the error message. Ensure that its data type matches the expected type for the context in which it is being used.
  Validate InfoObjects: Go to the InfoObjects involved and check their data types. Make sure they are correctly defined and consistent with the data model.
  Rebuild Queries: If the error occurs in a query, try to rebuild the query or refresh it to ensure that it picks up the latest metadata.
  Check Transformations: If the error is related to data loading, check the transformations and ensure that the mappings are correct and that the data types align.
  Clear Cache: Sometimes, clearing the BW cache can resolve issues related to outdated metadata. You can do this through transaction codes like RSADMIN or RSRT.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP BW you are using for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to check InfoObjects and data models.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional context.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage with SAP support for more in-depth troubleshooting.