How To Fix OH004 - Name &1 has an invalid formal structure

OH004 - Overview

• Message type: E = Error

• Message class: OH - Messages Group Maintenance

• Message number: 004

• Message text: Name &1 has an invalid formal structure

What causes this issue?

Object (&V2) uses a naming convention that name &V1& violates:
Names can include letters, numerals, or the special symbols underscore
(_) and hyphen (-)
The name must begin with a letter.
Umlauts (such as - or +) are not allowed.
The group name may not use an empty space ( ) within the name.
Do not use TRUE, T, FALSE, F, NOT, AND, NAND, OR, or NOR as names.
The R/3 System does not distinguish between uppercase and lowercase.
Do not use the plus sign (+) or asterisk (*) wild card symbols.

How to fix this error?

Use only names conforming to the naming conventions for object (&V2).

Error message extract from SAP system. Copyright SAP SE.

OH004 - Details

• The SAP error message OH004, which states "Name &1 has an invalid formal structure," typically occurs in the context of SAP HR (Human Resources) or SAP Payroll when there is an issue with the structure of a specific object, such as an infotype, personnel number, or other HR-related data.
  
  Cause:
  
  Invalid Structure Definition: The error often arises when the structure of a name (like a personnel number or infotype) does not conform to the expected format or structure defined in the system.
  
  Configuration Issues: There may be issues with the configuration of the infotype or the data model that defines how names and structures should be formatted.
  Data Entry Errors: Incorrect data entry or missing mandatory fields can lead to this error.
  Custom Development: If there are custom developments or enhancements in the system, they might not be aligned with the standard structure expected by SAP.
  
  
  Solution:
  
  Check Configuration: Review the configuration settings for the relevant infotype