Append Query Trouble - sql

Question

I am having trouble with the final piece of my append query. I have the records generating just like I want with the exception of not triggering until the Expression Event Date is <=Date(). It is giving me a unmatched error when I place the <=Date() in the criteria field of the query builder. I tried it with DateSerial and a few other variations. I'm sure it has to do with the expression being that and not a hard date. Any assistance would be appreciated.
INSERT INTO SchedulingLog (
UserID
, LogDate
, EventDate
, Category
, CatDetail
, [Value]
)
SELECT Roster.UserID
, Date() AS LogDate
, DateSerial(Year(Date()),Month([WM DOH]),Day([WM DOH])) AS EventDate
, SchedulingLog.Category
, SchedulingLog.CatDetail
, Max(tblAccrual!WeeksAccrual*Roster!Schedule) AS [Value]
FROM tblAccrual
, [Schedule Type]
, Category
INNER JOIN CatDetail
ON Category.CategoryID = CatDetail.CategoryID
, SchedulingLog
INNER JOIN Roster
ON SchedulingLog.UserID = Roster.UserID
WHERE (((tblAccrual.Years)<=Round((Date()-[wm doh])/365,2)))
GROUP BY Roster.UserID
, Date()
, DateSerial(Year(Date()),Month([WM DOH]),Day([WM DOH]))
, SchedulingLog.Category
, SchedulingLog.CatDetail
HAVING (((SchedulingLog.Category) Like "Vac*")
AND ((SchedulingLog.CatDetail) Like "Ann*"));

Answer 1

I believe the issue is not explicitly converting the user input date with CDate. I suspect it's fine in most of the query because the [MW DOH] parameter is provided directly to functions which will convert it to date. However the WHERE clause would need an explicit conversion.
The following generates the error "This expression is typed incorrectly, or it is too complex to be evaluated. For example, a numeric expression may contain too many complicated elements. Try simplifying the expression by assigning parts of the expression to the variables."
SELECT Date()-[userinput] AS something;
Whereas the following code does not
SELECT Date()-CDate([userinput]) AS something;