How To Fix /PM0/3FW_MESSAGES091 - Customer variant &1 must start with 'Y', 'Z', or '/'

/PM0/3FW_MESSAGES091 - Overview

• Message type: E = Error

• Message class: /PM0/3FW_MESSAGES -

• Message number: 091

• Message text: Customer variant &1 must start with 'Y', 'Z', or '/'

Self-Explanatory Message

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/PM0/3FW_MESSAGES091 - Details

• The SAP error message /PM0/3FW_MESSAGES091 indicates that a customer variant (likely a variant of a report or transaction) must start with specific characters: 'Y', 'Z', or '/'. This is a common restriction in SAP systems where custom objects (like variants, programs, or transactions) are required to follow certain naming conventions to differentiate them from standard SAP objects.
  
  Cause:
  
  Naming Convention: In SAP, standard objects typically do not start with 'Y', 'Z', or '/'. The system enforces this rule to prevent naming conflicts between custom and standard objects.
  Incorrect Variant Name: The variant name you are trying to use does not comply with the required naming convention.
  
  
  Solution:
  
  Rename the Variant: Change the name of the customer variant to start with 'Y', 'Z', or '/'. For example, if your current variant name is CUSTOM_VARIANT, you could rename it to Y_CUSTOM_VARIANT or Z_CUSTOM_VARIANT.
  Check Existing Variants: If you are trying to use an existing variant, ensure that it