How To Fix 37855 - Invalid type for header element in table control

37855 - Overview

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 855

• Message text: Invalid type for header element in table control

What causes this issue?

The element has a type that is not permitted in the title line of the
table control.

System Response

The element cannot be incorporated into the table control.

How to fix this error?

Choose an element with a permitted type. The title line of a table
control may currently only contain (static) texts and (dynamic) output
fields.

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.

37855 - Details

• The SAP error message "37855 Invalid type for header element in table control" typically occurs in the context of SAP ABAP programming, particularly when dealing with table controls in screen programming (dynpro). This error indicates that there is a mismatch between the expected data type of a header element in a table control and the actual data type defined in the program.
  
  Cause:
  
  Data Type Mismatch: The header element of the table control is defined with a data type that is not compatible with what is expected. For example, if the header element is defined as a character type but is being treated as a numeric type, this error can occur.
  Field Definition Issues: The field definitions in the screen (using Screen Painter) may not match the data types defined in the ABAP program.
  Incorrect Field Assignment: If the fields in the table control are not correctly assigned to the corresponding data elements in