To maintain a data set, you can validate and fix a data set. Validation checks if the data set fields exist as fields in the applicable D365 FO table. Validation also checks the field settings.

Besides the validation, the data set fields are fixed. The data set fields and field settings are made in line with the corresponding D365 FO table fields and field settings. For example, if a data set field does no longer exist in the D365 FO table, it is removed from the data set.

Standard procedure

1.	Go to Data modeling studio > Data modeling studio > Data sets.
2.	In the list, find and select the desired data set.
3.	On the Action Pane, click Maintain.
4.	Click Validate and fix.