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

DB884 - Overview

• 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.

DB884 - Details

• 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