How To Fix BTP_DL088 - Combining of '&1' with '&2' is not possible

BTP_DL088 - Overview

• Message type: E = Error

• Message class: BTP_DL -

• Message number: 088

• Message text: Combining of '&1' with '&2' is not possible

What causes this issue?

Combining compatibility of solutions is maintained with so-called
configuration sets. A configuration set specifies if solutions can be
combined into one single step in the project execution plan. Then, for
all the combined solutions in a step one single conversion package can
be created. Configuration sets are delivered by SAP with the portfolio
content of SAP LT and are not visible on the user interface.
For solutions '&V1&' (version &V3&) and '&V2&' (version &V4&) there
cannot be located any configuration set in the SAP LT portfolio. Hence,
these solutions cannot be combined into one single step.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

BTP_DL088 - Details

• The SAP error message BTP_DL088, which states "Combining of '&1' with '&2' is not possible," typically occurs in the context of data processing or integration scenarios within SAP Business Technology Platform (BTP) or related applications. This error indicates that there is an issue with combining two different data types, structures, or elements that are incompatible with each other.
  
  Cause:
  
  
  Incompatible Data Types: The most common cause of this error is attempting to combine two data types that cannot be merged. For example, trying to combine a string with a numeric value or different data structures that do not align.
  
  
  Incorrect Configuration: There may be a misconfiguration in the data model or integration settings that leads to this incompatibility.
  
  
  Data Source Issues: If the data is being pulled from different sources, the formats or structures of the data may not match, leading to this error.
  
  
  Business Logic Errors: There may be a logical error in the