How To Fix FDT_EXPRESSIONS185 - Unknown error in formula; see long text

FDT_EXPRESSIONS185 - Overview

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 185

• Message text: Unknown error in formula; see long text

Needs to be in 7.02 / 7.03 / 7.2L / 7.30 / 8.00

What causes this issue?

In the current formula expression, an error occurred during the check.
The error is caused by one of the following reasons:
At least one of the functions used in the formula has more than one
exporting parameter.
An internal error occurred while analyzing the formula.

System Response

The system has triggered an exception. The formula expression cannot be
saved.

How to fix this error?

Depending on the root cause of the problem, do one of the following:
Make sure that the underlying methods of all functions that are used in
the formula have exactly one exporting parameter. This is always true
for the formula functions provided by SAP, but the same prerequisite is
also mandatory for user-defined formula functions.
If the error is not caused by the exporting parameter issue mentioned
above, and if you cannot find any other syntactical issue in your
formula, create an OSS ticket so that SAP can analyze the problem.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

FDT_EXPRESSIONS185 - Details

• The SAP error message FDT_EXPRESSIONS185 indicates that there is an unknown error in a formula used in the context of SAP's Form Data Technology (FDT). This error typically arises when there is an issue with the expression or formula syntax, or when the formula references invalid or non-existent fields.
  Causes:
  
  Syntax Errors: There may be a typo or incorrect syntax in the formula.
  Invalid Field References: The formula might be referencing fields that do not exist or are not accessible in the current context.
  Data Type Mismatches: The formula may be trying to perform operations on incompatible data types.
  Logical Errors: There could be logical errors in the formula that prevent it from being evaluated correctly.
  System Issues: Occasionally, this error can be caused by system-related issues or bugs in the FDT framework.
  
  Solutions:
  
  Check Formula Syntax: Review the formula for any syntax errors. Ensure that all operators and functions are used correctly.
  Validate Field References: Ensure that all