How To Fix TPDA067 - If changes are made to &1, only the first &2 units are transferred

SAP Error Message - Details

• Message type: E = Error

• Message class: TPDA - Debugger

• Message number: 067

• Message text: If changes are made to &1, only the first &2 units are transferred

What causes this issue?

You tried to change a variable value that is longer than &v2& bytes or
characters.
Only &v2& elements of the value of a variable are passed between the
Debugger and the debugged development object.
Therefore, you cannot change more than &v2& elements of a variable value
when changing a variable.
The remaining elements are set to the initial value, in the case of
characters and X fields, or shortened to a length of &v2&
characters/bytes, in the case of strings and XSTRINGS.

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

System Response

How to fix this error?

To change parts of a long Char field, you can use offset and length
specifications.
Example:
To change the first character of a Char(1000) field C1000, use the
variable name C1000+0(1) and change it in the variable fast display.
Unfortunately, there is no solution for strings and XSTRINGS yet.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.