How To Fix DI779 - Name of lock parameter & is invalid since it contains &

SAP Error Message - Details

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 779

• Message text: Name of lock parameter & is invalid since it contains &

What causes this issue?

A <DS:TX.DDDOK_ENQU_PARAMETER>lock parameter</> of the lock object in
question has a name containing a BLANK or a hyphen. This is not allowed.

System Response

The action is cancelled.

How to fix this error?

In the maintenance transaction of the ABAP/4 Dictionary, give the lock
parameter a name which conforms to the
<DS:TX.DDDOK_ENQU_PARAMETERNAME>name conventions for lock
parameters</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DI779 - Name of lock parameter & is invalid since it contains & ?

  The SAP error message DI779 indicates that there is an issue with a lock parameter name that contains invalid characters. Specifically, the error message states that the name of the lock parameter is invalid because it contains an ampersand (&) character, which is not allowed.
  Cause:
  The error typically occurs when:
  
  A lock parameter name is being defined or used in a function module, program, or transaction, and it includes an invalid character (in this case, the ampersand).
  The system is trying to create or manage a lock using a parameter name that does not conform to the naming conventions expected by SAP.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Lock Parameter: Check the code or configuration where the lock parameter is being defined. Look for any instances where the parameter name includes an ampersand (&) or any other invalid characters.
  
  
  Rename the Lock Parameter: Change the name of the lock parameter to remove the ampersand and ensure it adheres to SAP's naming conventions. Valid names typically consist of alphanumeric characters and underscores.
  
  
  Test the Changes: After renaming the lock parameter, test the functionality to ensure that the error no longer occurs and that the locking mechanism works as intended.
  
  
  Review Documentation: If you are unsure about the naming conventions or the specific requirements for lock parameters, refer to the SAP documentation or guidelines for naming conventions in your version of SAP.
  
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for variables, parameters, and other identifiers to avoid similar issues in the future.
  Function Modules and Locking: Understand how locking works in SAP, including the use of function modules like ENQUEUE and DEQUEUE, which are used to manage locks.
  Debugging: If you are unable to locate the source of the error, consider using the SAP debugger to step through the code and identify where the invalid lock parameter is being set.
  
  By following these steps, you should be able to resolve the DI779 error and ensure that your lock parameters are correctly defined.