I#%92ve been running into the same problem but only at a certain point.
The user selects a Business Unit ID and a Contract #, then clicks the "New SR Number" button, as shown in the form screen shot below. A stored procedure is called and run to calculate the sequential number where it returns the new service receipt record. All seems to work well; I can change the header information and submit. I see the error when I insert records into any of the associated tables like employees or equipment and then try to submit.
I have access to modify the Stored procedure which I have been attempting to do but without success. I'm fairly new to SQL Server so there are some uncertainties on my end. I can post the SQL statement if it would help.
It appears to me that SQL server is not returning the schema for the associated tables. If this is the case, how do I go about making the schema match? Does anyone have any websites that would help me?
Here is what my main connection looks like.

Here is the form.