How To Fix DB884 - Nodes with deep types cannot be processed remotely

SAP Error Message - Details

• Message type: E = Error

• Message class: DB - Messages for logical databases and background processing

• Message number: 884

• Message text: Nodes with deep types cannot be processed remotely

What causes this issue?

You tried to read a node of the logical database that does not have a
flat structured type. It either has a deep ABAP Dictionary structure or
is declared in a type pool. This node may be on the path from the root
to another node with a flat structure. The system cannot process this
type of node when you call a logical database remotely.

System Response

The system stopped processing the logical database.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB884 - Nodes with deep types cannot be processed remotely ?

  The SAP error message DB884, which states "Nodes with deep types cannot be processed remotely," typically occurs in the context of remote function calls (RFC) or when using certain database operations that involve complex data types. This error indicates that the system is attempting to process a data structure that contains deep types (like nested tables or structures) in a remote context, which is not supported.
  Cause:
  
  Deep Types: The error arises when the data structure being passed contains deep types (e.g., nested tables or structures) that cannot be serialized or deserialized properly over the network.
  RFC Limitations: Remote Function Calls (RFC) have limitations on the types of data structures that can be passed. Deep types are not supported in RFC calls.
  Data Transfer: The error can also occur when trying to transfer complex data types between different systems or instances that do not support such structures.
  
  Solution:
  
  Flatten the Data Structure: Modify the data structure to avoid deep types. This can be done by flattening the structure, meaning you should convert nested tables or structures into simpler, flat structures that can be easily processed.
  Use Alternative Methods: If you need to transfer complex data, consider using alternative methods such as:
  
  IDocs: For transferring structured data between systems.
  BAPIs: Business Application Programming Interfaces that can handle complex data types more effectively.
  Web Services: If applicable, use web services that can handle complex data types.
  
  
  Check RFC Function Module: Review the RFC function module being called to ensure it is designed to handle the data types being passed. If necessary, create a new RFC function module that can handle the required data structure.
  Debugging: Use debugging tools to trace the data being passed and identify where the deep types are being introduced. This can help in modifying the data structure appropriately.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. SAP frequently updates its knowledge base with solutions for common issues.
  Documentation: Review the SAP documentation for RFC and data types to understand the limitations and best practices for data transfer.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  By addressing the deep types in your data structures and ensuring compatibility with RFC limitations, you should be able to resolve the DB884 error.