Conditional Processing During a Mail Merge

When using Word's mail merge feature, you are not limited to using only the actual data fields when putting together your merge document. Word also includes special fields that allow you to conditionally control how Word does the merging. These types of fields can be easily inserted by clicking on the Insert Word Field drop-down list on the Mail Merge toolbar. The three fields you can use for conditional processing are as follows:

• If ... Then ... Else. Use this field if you want to do a comparison between a data field and a value, and then take some action based on the comparison. This field is equivalent to the construct of the same name used in many programming languages.
• Next Record If. Use this field if you want to compare the contents of a data field to a value, and then jump to the next record if the comparison is true.
• Skip Record If. Use this field when you want to compare the contents of a data field to a value, and then ignore the current data record if the comparison is true.

You should note that you cannot use Word's conditional mail-merge fields to compare values in any record other than the current one. It would be very nice to compare the contents of a data field in the current record with the contents of the same data field in the previous record, but Word will unfortunately not allow it.

One possible workaround to this shortcoming--if you are using an Excel worksheet as your data source--is to simply copy the controlling field (column) to another column, and then offset it by one row. Here is an example:

As Word processes each record of the data source, the value of the OldCat data field is the same as the contents of the Category data field in the previous record. Thus, you could use a compound field such as the following to check and act upon the comparison between the fields:

{IF {MERGEFIELD Category} <> {MERGEFIELD OldCat} "first text" "second text"}