How To Fix FSCY121 - Entry &1 has invalid characters

FSCY121 - Overview

• Message type: E = Error

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

• Message number: 121

• Message text: Entry &1 has invalid characters

What causes this issue?

The entry has invalid characters.
This is checked by a Business Add-In (BAdI) which checks each character
of the entry. A function module is used in the implementation which does
not allow this value to be entered.
For example, the function module checks whether the entry only consists
of letters and ends with a number (CCCCN) so that the values such as
AcSD2, gT3, and so on are allowed, but not values like D7AwF.

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?

If you want to check the entry, the coding of the BAdI must be changed.
Otherwise, the BAdI has to be deactivated.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FSCY121 - Details

• The SAP error message FSCY121, which states "Entry &1 has invalid characters," typically occurs when there are invalid characters in a field that is expected to contain only certain types of data. This error is often encountered in financial transactions, master data entries, or when processing certain types of documents.
  
  Cause:
  
  Invalid Characters: The entry may contain characters that are not allowed in the specific field. For example, if the field is meant for numeric values, any alphabetic characters or special symbols (other than those allowed) will trigger this error.
  Field Length Exceeded: Sometimes, the entry may exceed the maximum length allowed for that field.
  Incorrect Data Format: The data may not conform to the expected format (e.g., date formats, currency formats).
  
  Configuration Issues: There may be configuration settings in the system that restrict certain characters or formats.
  
  
  Solution:
  
  Check the Entry: Review the entry that triggered the error. Ensure that it contains only valid characters as