How To Fix GM147 - Resource &1 not defined in period &2

GM147 - Overview

• Message type: E = Error

• Message class: GM - Combination manager

• Message number: 147

• Message text: Resource &1 not defined in period &2

What causes this issue?

You want to plan or post to resource &V1& in period &V2&. However, this
resource does not exist in this period and cannot therefore be used
here.

System Response

The system rejects your entry.

How to fix this error?

Either:
Stop extending the validity period of resource &V1&, or
Shorten the planning or posting period so that this period lies within
the validity period of resource &V1&.

Error message extract from SAP system. Copyright SAP SE.

GM147 - Details

• The SAP error message GM147 ("Resource &1 not defined in period &2") typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with budget management or resource planning. This error indicates that a specific resource (identified by &1) is not defined or available for the specified period (identified by &2).
  
  Cause:
  
  Resource Not Defined: The resource you are trying to use has not been defined in the system for the specified period. This could be due to missing configuration or setup.
  Period Not Open: The period you are trying to access may not be open for posting or may be closed in the system.
  Incorrect Resource Assignment: The resource may not be correctly assigned to the relevant organizational unit or project.
  Master Data Issues: There may be issues with the master data related to the resource, such as missing or incorrect entries.
  
  
  Solution:
  
  
  Check Resource Definition:
  
  Go to the relevant configuration transaction (e.g., OMPA