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then I need to run stored procedure to insert into table on the SQL Server side
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VBA doesn't directly access tables. &nbsp;You would do this by creating an update query that selects the record you want to update if the value is null and sets the value to whatever you want.<br />
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I'm guessing that you are making this harder than it needs to be. &nbsp;Are you not using a bound form?
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Need to write VBA to determine if a textbox value is in table then . . . update table
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Need to write VBA to determine if a textbox value is in table then . . . update table

then I need to run stored procedure to insert into table on the SQL Server side

VBA doesn&#39;t directly access tables.  You would do this by creating an update query that selects the record you want to update if the value is null and sets the value to whatever you want.

I&#39;m guessing that you are making this harder than it needs to be.  Are you not using a bound form?

MS ACCESS VBA If Form textbox value in table and date is not null then

Microsoft Access is a rapid application development (RAD) relational database tool. Access can be used for both desktop and web-based applications, and uses VBA (Visual Basic for Applications) as its coding language.

Microsoft Access

Visual Basic for Applications (VBA) enables building user-defined functions (UDFs), automating processes and accessing Windows API and other low-level functionality through dynamic-link libraries (DLLs). VBA is closely related to Visual Basic and uses the Visual Basic Runtime Library, but it can normally only run code within a host application rather than as a standalone program. It can, however, be used to control one application from another via OLE Automation. VBA is built into most Microsoft Office applications.