How To Fix EC055 - No usable functions exist (see F1)

EC055 - Overview

• Message type: E = Error

• Message class: EC - Development environment: Menu Painter

• Message number: 055

• Message text: No usable functions exist (see F1)

What causes this issue?

Either no functions have been created in the user interface or all the
functions have already been assigned to function keys.

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?

You can create a function in any of the following ways:
1. Enter the four-character function code and the function text in
a menu or on a function key.
2. In the function list.
3. Select <LS>Edit -> Insert -> Func.with dyn.text</> or <LS>Insert
-> Function with icon</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EC055 - No usable functions exist (see F1) ?

  The SAP error message EC055 "No usable functions exist (see F1)" typically occurs when you are trying to execute a function module or a transaction that does not have any valid or available functions associated with it. This can happen for several reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Missing Function Module: The function module you are trying to call may not exist in the system or may not be activated.
  Authorization Issues: The user may not have the necessary authorizations to access the function module or transaction.
  
  Configuration Issues: The configuration for the specific function or transaction may not be set up correctly.
  Transport Issues: If the function module was recently transported from another system, it may not have been properly imported or activated.
  System Version: The function may not be available in the version of SAP you are using.
  
  Solutions:
  
  Check Function Module: Use transaction SE37 to check if the function