How To Fix RE300 - Reference type not maintained for doc.category &1 doc.type &2

RE300 - Overview

• Message type: E = Error

• Message class: RE - Earmarked funds

• Message number: 300

• Message text: Reference type not maintained for doc.category &1 doc.type &2

What causes this issue?

There is no reference type maintained for document category &V1& and
document type &V2&. You can define the combination of document
category/document type using transaction FMU1.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RE300 - Reference type not maintained for doc.category &1 doc.type &2 ?

  The SAP error message RE300 indicates that there is a missing reference type for a specific document category and document type in the Real Estate Management (RE) module. This error typically occurs when you are trying to create or process a document in the RE module, and the system cannot find the necessary configuration for the reference type associated with the specified document category and document type.
  
  Cause:
  The error is caused by the absence of a defined reference type for the specified document category and document type in the configuration settings of the Real Estate Management module. This can happen due to:
  
  Missing Configuration: The reference type has not been maintained in the system for the specified document category and document type.
  Incorrect Document Type: The document type being used may not be valid or may not have been set up correctly in the system.
  Custom Development: If there are custom developments or modifications