How To Fix FSCY107 - Entering character &1 for substring is not permitted

FSCY107 - Overview

• Message type: E = Error

• Message class: FSCY - Generation of Cover Pools - Flexible Master Data Structure

• Message number: 107

• Message text: Entering character &1 for substring is not permitted

What causes this issue?

The character &V1& can be used as a separator for the individual
substrings.

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?

Enter a valid character.
You should use the following characters because they can be used as a
separator for the individual substrings:
Back slash
Slash
Hyphen
Period

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FSCY107 - Details

• The SAP error message FSCY107, which states "Entering character &1 for substring is not permitted," typically occurs when there is an issue with the input data in a specific field that does not conform to the expected format or character set. This error is often related to the use of special characters or invalid characters in a substring or field that is expected to contain only certain types of characters.
  
  Cause:
  
  Invalid Characters: The input contains characters that are not allowed in the specified field. For example, if the field is expected to contain only numeric values, entering alphabetic characters or special symbols will trigger this error.
  Field Length: The input may exceed the maximum length allowed for that field.
  Data Type Mismatch: The data type of the input does not match the expected data type for the field (e.g., entering a string in a numeric field).
  
  Configuration Issues: There may be configuration settings in