How To Fix WL367 - Result of operation '& & &' is a date; type '&' not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 367

• Message text: Result of operation '& & &' is a date; type '&' not allowed

What causes this issue?

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?

Only the following operations are permitted with date/time:
'date - date' returns an integer
'date - number' returns a date
'time - number' returns a time
'time - time' returns an integer
The result of any calculation or assignment must be type-compatible
with the operand(s) and may not lead to an overflow, i.e. the result
element must be large enough when selected.
The following abbreviations are used in the message:
'I': integers (ABAP data type: Int1, Int2, Int4)
'P': packed numbers with decimal places and signs (Dec, Packed)
'N': character string with numerical values (Numc)
'C': character strings (Character)
'D': date
'T': time
'O' or 'o': objects from the Business Object Repository

Error message extract from SAP system. Copyright SAP SE.