How To Fix E2136 - Initial value not permitted as fixed value (use 'insert space')

SAP Error Message - Details

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 136

• Message text: Initial value not permitted as fixed value (use 'insert space')

What causes this issue?

The initial value is not permitted as an entry in this field.

System Response

The entry is not accepted.

How to fix this error?

Use the <LS>Insert space</> function in the <LS>Edit</> menu if you
want to enter a space for the value or the <LS>Delete entry</> function
if you want to delete the entry.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E2136 - Initial value not permitted as fixed value (use 'insert space') ?

  The SAP error message E2136, "Initial value not permitted as fixed value (use 'insert space')," typically occurs in the context of ABAP programming or when defining fixed values in certain data structures or tables. This error indicates that an initial value (which is often an empty string or null) is not allowed in a specific context where a fixed value is expected.
  Cause:
  
  Fixed Value Requirement: The error arises when a field or parameter is defined to accept fixed values, but an initial value (like an empty string) is being used instead. This is often seen in the context of selection screens, data dictionary definitions, or when defining constants.
  Data Type Mismatch: The data type of the variable or field may not be compatible with the expected fixed value.
  Incorrect Configuration: In some cases, the configuration of the data element or domain may not allow for an initial value.
  
  Solution:
  
  Use 'Insert Space': The error message suggests using 'insert space' instead of an initial value. This means you should ensure that the field is either left blank or explicitly set to a space character if that is acceptable in your context.
  Check Data Definitions: Review the data definitions in the ABAP program or the data dictionary. Ensure that the fields are defined correctly and that they allow for the values you intend to use.
  Modify Fixed Values: If you are defining fixed values in a selection screen or a similar context, ensure that you are not using an initial value. Instead, provide a valid fixed value or leave it blank if the context allows.
  Review Program Logic: If the error occurs during program execution, check the logic to ensure that the values being passed to the fields are valid and conform to the expected data types and constraints.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for more details on data types, fixed values, and selection screen definitions.
  SAP Community: Engage with the SAP Community forums to find discussions related to this error message, as other developers may have encountered and resolved similar issues.
  Debugging: Use the ABAP debugger to trace the execution of your program and identify where the initial value is being set incorrectly.
  
  By addressing the cause of the error and implementing the suggested solutions, you should be able to resolve the E2136 error in your SAP environment.