How To Fix RSDA188 - Field '&1': Data type '&2' not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDA - BW Archiving: Messages

• Message number: 188

• Message text: Field '&1': Data type '&2' not supported

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDA188 - Field '&1': Data type '&2' not supported ?

  The SAP error message RSDA188 indicates that there is an issue with the data type of a field in a DataSource or InfoProvider. Specifically, it states that the data type of the field is not supported for the operation you are trying to perform. This error typically occurs in the context of data extraction or transformation processes in SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  
  Unsupported Data Type: The field in question has a data type that is not compatible with the operation being performed. For example, certain data types may not be supported for aggregation, transformation, or loading into a specific target.
  Incorrect Mapping: There may be a mismatch in the mapping of fields between the source and target systems, leading to unsupported data types being used.
  DataSource Configuration: The DataSource may not be correctly configured to handle the data types present in the source system.
  
  Solution:
  
  Check Data Types: Review the data types of the fields in the DataSource and ensure they are compatible with the target InfoProvider or transformation. You may need to change the data type in the source system or adjust the DataSource configuration.
  Modify DataSource: If the DataSource is not configured correctly, you may need to modify it to ensure that it supports the required data types. This could involve changing the field definitions or adjusting the extraction logic.
  Use Transformation Rules: If the data type cannot be changed, consider using transformation rules to convert the unsupported data type into a supported one during the data load process.
  Consult Documentation: Refer to SAP documentation for the specific version you are using to understand the supported data types and any limitations that may apply.
  Testing: After making changes, perform tests to ensure that the data extraction and loading processes work as expected without triggering the error.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on handling unsupported data types.
  Data Modeling: Familiarize yourself with data modeling concepts in SAP BW or HANA, as understanding how data types interact can help prevent similar issues in the future.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the RSDA188 error and implement a solution to resolve it.