How To Fix RSAN_OM106 - Conversion error: element &1 may only contain one element

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAN_OM - Messages on Analysis Object Model Services

• Message number: 106

• Message text: Conversion error: element &1 may only contain one element

What causes this issue?

An error occurred while the XML document was being implemented in the
internal program structure.
The element "&V1&" must have no more than one subordinate element.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

<NP><&V1& NAME="&V2&" ... ></>
<NP><&V3& .../></>
<NP><ZH><&V4& ...></></>
<NP>...</>
<NP></&V1& ></>

System Response

The document cannot be loaded.

How to fix this error?

If this concerns one of your own XML documents, correct the error in
your document.
If this error has occurred with XML documents generated from within the
SAP System, a program error is the cause. In this case, look in SAP
Notes for one containing the key word <ZH>RSAN_OM106</>. If the problem
is already known, a solution might exist. Otherwise, send a problem
message to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAN_OM106 - Conversion error: element &1 may only contain one element ?

  The SAP error message RSAN_OM106 indicates a conversion error in the context of SAP BW (Business Warehouse) or SAP HANA, specifically related to the data modeling or transformation processes. The message states that the element specified (denoted as &1) may only contain one element, which typically means that the system is expecting a single value but is receiving multiple values or an unexpected format.
  Cause:
  
  Multiple Values in a Single Field: The most common cause of this error is that a field or element that is expected to hold a single value is instead receiving multiple values. This can happen during data extraction, transformation, or loading (ETL) processes.
  Incorrect Data Mapping: If the data mapping in the transformation rules is not set up correctly, it may lead to situations where multiple values are being passed to a field that only allows a single value.
  Data Type Mismatch: There may be a mismatch in the expected data type for the field, leading to conversion issues.
  Hierarchy Issues: If the element is part of a hierarchy, and the hierarchy is not properly defined or is being violated, it can lead to this error.
  
  Solution:
  
  Check Data Source: Review the data source to ensure that the field in question is indeed supposed to contain only a single value. If it is supposed to contain multiple values, consider changing the data model or transformation logic.
  Review Transformation Logic: Go through the transformation rules in the Data Transfer Process (DTP) or InfoPackage to ensure that the mapping is correct and that it is not trying to load multiple values into a single field.
  Data Cleansing: If the data being loaded contains multiple values, you may need to cleanse the data before loading it into the target field. This could involve aggregating values or filtering out duplicates.
  Check Hierarchies: If the element is part of a hierarchy, ensure that the hierarchy is correctly defined and that the data adheres to the hierarchy structure.
  Debugging: Use the SAP BW or HANA debugging tools to trace the data flow and identify where the conversion error is occurring. This can help pinpoint the exact transformation or mapping that is causing the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message for any patches or updates that may address known issues.
  Documentation: Review SAP documentation on data modeling, transformation processes, and error handling in BW or HANA for more insights.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the RSAN_OM106 error and implement a solution to resolve it.